Games with various difficulty levels allow you to choose how hard or easy you want the game to be from the start. While some can be easy or hard no matter which one you pick, some games may seem harder or easier just because of the region the game was made in. Typically this occurred due to there being a belief in Japan that Americans preferred harder games; often US versions would have the lowest difficulty setting totally removed and / or an even harder bonus mode added. However, the inverse also occurred at times—some Japanese game developers felt that Americans (usually, but this could apply to PAL regions too) would not be able to handle a game's difficulty, so a North American release would be made significantly easier, or replaced entirely
Another reason for higher difficulty in international versions is that renting games is illegal
in Japan. Either you buy it or you don't play at all (unless you borrow from a friend who has bought the game). This led to increase in difficulty for games which were considered easy and short enough that gamers could finish them over a couple of days of renting it. Higher difficulty means more time has to be spent with the game in order to beat it, which requires more rentals or buying the game.
Sometimes, the difficulties are the same but named differently to be more or less encouraging depending on the region. For example, one region might have Easy, Normal and Hard while another has the same difficulties, but labeled Normal, Hard, and Super respectively.
Examples are listed by platform of origin:
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- Black Tiger - The Japanese version (titled Black Dragon) features a greater number of enemies with stronger attacks, more aggressive bosses, more falling rock traps, and more expensive items.
- Crime Fighters - The Japanese version featured a traditional lives/health gauge system, whereas the American version uses hit points that are gradually drained as time goes by. The Japanese version also has a back kick button that was removed from the American version.
- Devil World - Not to be confused with the NES game of the same name, this Gauntlet-inspired overhead action game by Konami was released in America as Dark Adventure. The American version traded Labryna's and Condor's default guns (a bow-gun and a pistol) in favor of melee weapons (a sword and a whip), ditched the Gradius-style power-up system in favor of specific power-ups, and their health decreases faster than in the other versions. On the other hand, Dark Adventure has an additional character in the form of the spear-wielding Zorlock, allowing for up to three players.
- Double Dragon 3: The Rosetta Stone - The overseas versions were made first and featured item shops where the player could purchase new playable characters, special moves and weapons (among other power-ups) by inserting more coins into the cabinet. Essentially Double Dragon 3 introduced the concept of microtransactions in gaming long before it was employed by other developers. This feature proved to be rather unpopular among players, so when the developers worked on the Japanese release, they removed the item shops completely and allowed players to choose any of the four character types from the get-go, with all their moves usable from the outset (they did make the Hurricane Kick harder to pull off to compensate for this). In the Japanese version weapons are found lying on the ground waiting to be picked up, a huge contrast from the first two games where the player had to disarm enemies first.
- Fire Shark - As with Twin Cobra, the original Japanese version, Same! Same! Same!, had respawning only at checkpoints and no simultaneous two-player mode; enemies also fire more often. The developers at Toaplan regretted making the Japanese version too difficult; the later simultaneous two-player Same! Same! Same! is actually easier than the overseas version.
- Gradius - The overseas version (Nemesis) feature more aggressive enemies. To make up for the increased difficulty, the game throws the player a fleet of red enemies every time he loses a ship, allowing the player to refill his ship's power-up gauge.
- Gradius III - The "Asia" and "World" editions had the full length "technical course" of the Japanese version with the difficulty of the "beginner" mode.
- Haunted Castle - There were four versions of the game labeled M, N, O and P. M and O were the overseas releases, while N and P were Japanese releases. Version M in particular is the hardest of the four versions, where a single bone throw from the skeleton enemies in the very first stage will result in the player losing half of his health.
- Jackal (aka Top Gunner) - In the Japanese version, the player's machine gun will shoot at the direction their jeep is facing, whereas in the US and World versions it will always shoot north. The grenade/rocket launcher works the same way in all three versions though.
- Kid Niki Radical Ninja had mid-stage checkpoints in the American arcade version, whereas the Japanese arcade version (Kaiketsu Yanchamaru) forced you back to the beginning of the level upon death. The NES/Famicom port had the same mid-stage checkpoints in all regions.
- Shadow Force - The U.S. version added one-on-one segments after each stage (including the final one) that forced the players to fight each other (or in the case of a solo game, against a computer-controlled version of one of the main characters) before proceeding to the next stage, making it impossible to complete the game with a partner without credit feeding. To top it off, there's even an additional battle after the final boss fight where the last surviving player must fight against a revived version of a previous boss and if he loses this battle, it's an instant Game Over with no continues. The U.S. version also used a more complicated six-button configuration instead of the Japanese version's simpler three-button controls (the extra buttons in the American version were for moves that were originally done with different joystick/button combinations in the Japanese version).
- The Simpsons - The Japanese version was made much easier than the international version. More food and weapons were added to the levels (including a new atomic bomb item that clears the screen), the slingshot was powered up to kill any enemy in one hit, and you can use weapons while jumping. The Japanese version also allowed players to add another "layer" to their health gauge by picking up food with full health.
- Super Contra - The export version ends on one loop, whereas the Japanese version has a second loop in which the difficulty is set on the hardest setting (regardless of the game's actual settings) and continues are not allowed.
- Trigon - The US version (Lightning Fighters), the game-breaking Homing Trigon weapon is no longer available in 1-player mode. On the plus side, it does have instant respawning when you die, although you still lose all your powerups.
- Twin Cobra has a fair number of differences from its Japanese version, Kyūkyoku Tiger, but the one with the most dramatic impact on the game's difficulty is that Twin Cobra doesn't force the player back to a Check Point upon dying. The player's helicopter also moves a bit faster in Twin Cobra.
- However, the bullet limit is higher in the Japanese version, allowing for increased firepower.
- The sequel features more durable enemies in its Japanese incarnation.
Family Computer / Nintendo Entertainment System
- The Addams Family Fester's Quest - The European version made it easier by allowing Fester's shots to pass through walls and obstacles. This prevents the frustration of shooting at enemies in narrow passages with projectiles that don't go straight.
- The Adventures of Bayou Billy - In the western version, anything in the driving stages causes the player's jeep to explode in one hit. The Japanese version (Mad City) just takes a chunk of life away. And this is one example. As a rule of thumb, anything that would help you is halved (like your attack and defense), and anything that would hamper you is doubled (like enemies' attack and defense) when compared to Mad City.
- Adventures of Lolo II and III - The American versions of both games contained some puzzles lifted from older Eggerland games that were never released in America. The Japanese versions of these games, titled Adventures of Lolo and Adventures of Lolo II (the first American Adventures of Lolo consisted entirely of recycled puzzles, and was therefore not released in Japan) contained new, harder puzzles instead. However, some of the puzzles from the Japanese Adventures of Lolo also ended up in the American Adventures of Lolo III.
- Battletoads - While still not a cakewalk, the Japanese version is much, MUCH easier than the legendarily difficult western releases. There are so many differences in obstacle placement in every level that a full list of them would take up quite a bit of space. For example, Level 3 has lots of extra jump ramps, no midair ramps, completely removed the island jumping section with the flashing exclamation mark, and doesn't speed up at the very end. The player also has 5 continues and 5 lives per continue by default (instead of 3), which requires a cheat code to enable in other versions of the game.
- Bionic Commando - The western version changes around the difficulty of certain areas a bit. Generally, the early areas of the game were made much harder and the later sections were made easier.
- Blaster Master - The room in Area 4 that leads to Area 5 was made much easier in the western versions. In the original Famicom version (Metafight), the player has to fall from a tall height and latch onto a ladder before hitting the ground. The NES version added a series of platforms instead.
- Castlevania I - The original Disk System version in Japan (Akumajō Dracula) not only had a save feature, but also gave out morning stars earlier. The 1993 Japanese cartridge re-release took out the save feature, but added an "Easy" mode which starts the player off with more lives and power-ups.
- Castlevania III: Dracula's Curse - In the western version, every enemy takes off the same amount of health, and the damage they inflicted increases in later stages, as with the first game. In the Japanese version (Akumajō Densetsu), different enemies take off different amounts of health, and the damage they inflict remains the same throughout the entire game. The western version also has more enemies in some rooms (such as additional bats in the last room before Dracula), and Grant's throwing daggers (with an attack range that reaches across the entire screen) were replaced by a stabbing dagger with tiny range. The Cross and Holy Water were also made rarer and removed from random drops, Alucard's bat power drained hearts twice as fast as well as costing a heart to activate, and Dracula's third form could attack in 16 direction and twice as frequently. To compensate somewhat, the game had a code that gave you 10 lives, even after a game over, and sending you back to before the pendulums after losing to Dracula allowed you to pick up a Game Breaker Axe for use on Drac's third form.
- The European version is based on the U.S. version but made slightly easier: enemies do one less damage in early levels and the Stopwatch lasts one second longer.
- Contra and Super C - The Japanese versions of both games had a Stage Select code. The ten-lives code in Super C was originally a thirty-lives code in the Japanese version as well.
- Dr. Jekyll & Mr. Hyde - The two of the three town stages from the Famicom version (Hōma ga Toki) were replaced by recycled versions of other stages. Admittedly, these stages were most likely cut out due to their suggestive content rather than their actual difficulty, since the player could refill Jekyll's stress gauge by visiting a certain woman's apartment, who proceeds to pays him with cash while romantic music plays in the background (although, sometimes the opposite happens as the woman proceeds to drain Jekyll's stress gauge and steal his money instead). Nevertheless, their removal does affect the game's difficulty, since there's no other way to restore Jekyll's stress gauge.
- Double Dragon II: The Revenge - The Japanese version has standard names for its three difficulty settings (Easy, Normal and Difficult), while the American version gives them fancier labels (Practice, Warrior and Supreme Master). Whereas the Japanese version features unlimited continues and allows the entire game to be played on any difficulty, the American version requires cheat codes to continue and restricts the game's length based on the setting (the easiest setting lasts only three stages, whereas the final stage is only accessible on the hardest level). There are other specific differences between the two versions as well: the disappearing platforms in Mission 6 are much easier in the Japanese version's Easy and Normal modes than in the American version's Warrior setting, while enemies have more health in the Japanese version's hardest setting than in its American equivalent.
- Double Dragon III: The Sacred Stones - The American version adds more enemies and reduces the player's total health by ten points per character. On the other hand, the Japanese version changes the ending depending on which character survive the final battle, whereas the American always shows the full ending with all four characters regardless of whether they died during the game or not (including Jimmy, who only appears in a 2-Player game).
- Dragon's Lair - The Japanese and European version were improved over the original American release by making the game faster and smoother, thereby reducing the difficulty level a notch.
- Fist of the North Star - Originally released as Hokuto no Ken 2 for the Famicom, the American version made some of the earlier sub-bosses (Balona, Buzori) easier to defeat and allowed continues to restart at any stage (whereas continues in the Japanese version warp you back to Stage 4 in later stages). However, the NES version added a Game-Breaking Bug that causes the player to go throughout glitched versions of the four Vs. Mode stages and then end up in a empty room with a bottomless pit, rather than showing the ending (making continues rather worthless).
- Kid Icarus - The American version made a few changes to the last level: the screen scrolls automatically rather than based on the player's movement, you no longer have to hold the Jump button to fly, you can fly through the bricks and pillars, and enemy patterns have been changed. These differences make the American version a little easier.
- The Legend of Zelda I - A very minor example: the North American version added Keese to a couple of originally empty rooms.
- Life Force - In the American version, a single player can have up to two attack drones (or one for each player in 2-Players Mode), whereas the Japanese version (Salamander) allows up to three shared between both players. On the other hand, the NES version got the Konami Code, which was not in the Famicom version.
- Mega Man 2 - The American version had two difficulty settings: Normal and Difficult. The Japanese version only contained Difficult mode, and was deemed too challenging for most American players, explaining the change. The Wily Wars port for the Mega Drive was more faithful to the original Japanese version and had no difficulty selection.
- Mighty Bomb Jack - The American version moved some items to make them easier to find and allowed you to break secret blocks in one jump, rather than several.
- Mr Gimmick - In the Japanese version (called Gimmick!), you start with three lives and get an extra one at 10,000 points and every 25,000 points thereafter. In the European version, you start with seven lives and get an extra one at 10,000 points and every 20,000 points thereafter.
- Ninja Gaiden III: The Ancient Ship of Doom - The American version removed the Password Save (this was the first game in the series to have one), doubled the damage delivered by enemies (essentially reducing the player's health by half), limits checkpoints to only the beginning of a stage and made continues limited. The version included in Ninja Gaiden Trilogy for the SNES reverted the difficulty back to the same level it was in the Famicom version.
- Rainbow Islands - The European version has 5 continues, whereas the other versions have an unlimited amount and a level select cheat.
- River City Ransom - The Japanese version (Downtown Nekketsu Monogatari) has three difficulty levels, whereas the western versions only has two. The "Easy" setting was removed, while "Normal" and "Hard" became "Novice" and "Expert" respectively. The option to disable player-to-player damage was also removed from the western versions.
- Rush'n Attack - The Japanese version was released for the Disk System under the title of Green Beret, which featured instant re-spawns after every death (instead of the checkpoint system used in the NES version), greater ammo carrying capacity for the player (9 instead of 3), limited continues (as opposed to none) and hidden underground shortcuts. To balance things out, the NES version starts the player off with more lives and all the weapons give out full ammo (as opposed to the Disk System version, in which they had to be accumulated one by one).
- S.C.A.T. - Also known as Action in New York in Europe, S.C.A.T. is a rare example of an NES action game actually being made easier for the export market. The Famicom version, Final Mission, started the player with three hit points and would revert the player's weapon back to the default gun every time the player gets hit. In the NES version, the player starts off with six hit points and always keeps his or her weapon no matter how many hits he or she takes.
- Section Z - The Famicom version was released on the Disk System and had a save feature that allows players to resume the game where they left off. The NES version on the other hand forces the player to complete the whole game on one sitting.
- Super Mario Bros. 3 - The western version some subtle changes in its difficulty. In the Japanese version, if you were Fire or Raccoon Mario and you were hit, you'd revert to Small Mario (same as the original Super Mario Bros.). This was changed in the American version where being hit while having fire or raccoon powers would revert you back to Super Mario.
- Super Spike V-Ball - The Famicom version (titled U.S. Championship V-Ball) has a Tournament mode where the player compete against ten CPU teams (five American teams, three World Cup teams of randomly-assigned nationalities and two special matches) that could be adjusted by up to three difficulty settings (Easy, Normal and Hard). The NES version took out the difficulty settings and split the Tournament mode into three modes: Practice (only one match), American Circuit (consisting of five teams) and World Cup (seven teams, including the special matches and two added teams that were not in the Famicom version).
- Zelda II: The Adventure of Link - The export versions added weak XP-draining monsters and monsters that can only be harmed by the Fire spell (one of them appearing well before the player gets that spell).
- Increasing Link's stats are a lot easier in the Japanese version where the experience points needed to level up stopped increasing once it hit 4000 points whereas other versions raised the maximum cap to 9000, and made P-Bags drop rather less often from enemies. Needless to say, many players who were in the latter category would spend a ton of time level grinding. But there is a bit of compensation with P-Bags found in set places, as they are usually more generous in exp in the US and EU versions.
Super Famicom / Super NES
- ActRaiser - Not as extreme example as some: the Japanese version was overall more difficult, with some enemies having attack patterns that were removed from the US release. The simulation stages also were a little faster to get through in the US version. Additionally, the while the US release required higher total world population sizes for gaining each level, it also had higher population maximums in each city, and each city grew a bit faster.
- Brain Lord - Monsters were beefed up in the U.S. version.
- Contra III: The Alien Wars - The Japanese version (Contra Spirits) had a couple of cheat codes (namely a thirty-lives code and a stage select) that were removed from the overseas releases. Moreover, the Japanese version allows the player to fight the True Final Boss on Normal, whereas the overseas versions only allows it on Hard.
- Donkey Kong Country, another Rare game, had numerous small changes in the Japanese version (Super Donkey Kong) that made it slightly easier in a few levels .
- Donkey Kong Country 2 - Similarly to the first game, saving after the first time in Kong Kollege only costs one coin in the Japanese version, not two. However, Funky's Flights still costs two coins.
- Final Fantasy IV - The American version (titled Final Fantasy II since it was the second game in the series released overseas) was significantly easier than the Japanese version. It eliminated a number of character abilities and items, simplified the removal of Standard Status Effects, and made most of the bosses easier. A few months before its release, Square released an "Easytype" version of the game in Japan, based on a prototype of the US version that was even easier than the US version with things like Ribbons that absorb all elemental attacks on top of protecting characters from status aliments.
- Illusion of Gaia - In the Japanese version, herbs fully recover your health. Also, you don't have to attack the first boss's hands to hurt him, and the earthquake attack can be used to stun a boss.
- The 7th Saga - The American version is legendary for being obscenely hard and featuring insane level-grinding. The American version reduced the average stat gains per level for player characters compared to the Japanese version. This also added an unwinnable situation, as they didn't tone down the stat gains your rivals get as bosses based on your level, so leveling up too much can literally make them too powerful to beat However, there's a loophole the player can take advantage of here. The rival's stats are based only on the main character's level. Therefore, the player can get around their stat gains by only leveling the companion character and making him or her fight the rivals instead.
- Soul Blazer - In the Japanese version, the first boss room had two conveyor belts pushing away from the boss and one normal bridge. The International versions instead have three conveyor belts, two pushing toward the boss and one away from it. This makes it harder to perform hit and run tactics.
- Super Double Dragon - The Japanese version (Return of Double Dragon) has three selectable difficulty settings (Easy, Normal and Hard), whereas the American version doesn't have any. However, the difficulty of the American version is harder than the hardest setting of the Japanese version. Enemies have more health and weapons such as incendiary bombs and knives are more lethal. The American version also recycles boss characters more often and some of the added moves in the Japanese version, like the multi-hit Hurricane Kick and the ability to catch your boomerangs or exchange weapons on the ground, were not implemented yet in the American version. On the other hand, the Japanese version is slightly longer, with two extra areas added to the final stage.
- Super Mario World - Very minor changes are noticeable between versions. The bonus level "Funky" in the Japanese version had three green berries which add time to the clock. Western versions added six more green berries.
- The Twisted Tales of Spike McFang - The American increases the defense of enemies, making level grinding obligatory if the player wants to do more than scratch damage to bosses. Many enemies turn into Boss in Mook Clothing thanks to this. It also removes the Level Up Fill Up mechanic and the option to restart with full health in the beginning of an area if you die.
- The Legend of Zelda: Majora's Mask - The Owl Statues you find in the game serve as warp points and quicksave points in the international releases of the game. In the Japanese version, the only way to save was to play the Song of Time and return to the Dawn of the First Day. The inclusion of owl saves required Nintendo to reduce the number of save files to two. To this day, International Majora's Mask is the only Zelda game to not have three save slots.
- FireEmblem: Path of Radiance - The Harder Than Hard Maniac mode was removed and replaced with an Easy mode in the American version. Then again, the 255% crit chance forge bug was removed, and upper-tier enemies can crit a lot more.
- Luigi's Mansion - The Hidden Mansion mode wasn't too impressive in the Japanese and US versions, with merely rooms being a bit darker and some other minor tweaks. The PAL version though... completely redid most of the game. In this mode, you got the whole mansion mirrored, more (and harder) enemies in rooms, more treasure like golden mice, bosses with new attacks (rocking horses in first battle went diagonal, you rode on the Poltergust when against Boolossus, and Bowser's mines exploded instantly in some cases), and annoyingly... you had to beat the Hidden Mansion to get an A grade.
- Resident Evil 4 - The Japanese and European versions have an "Easy" setting that was not present in the American release. This also applies to the PS2 and Wii versions.
- Paper Mario: The Thousand-Year Door - In the third electric-floor room in the X-naut fortress in the Japanese version, the safe path is only two squares long, compared to three in the North American and the PAL versions.
- Fire Emblem: Radiant Dawn: The difficulty settings were renamed. The Japanese version's Normal mode became the English version's Easy mode, while the Japanese Hard became the English version's Normal.
- The Western version also added the ability to make permenant (i.e. endlessly reloadable) saves mid-battle, with only Hard Mode retaining the 'suspend' (a one-time save that deletes itself when you reload it, basically just if you want to take a break) system from the Japanese version.
- Super Smash Bros. Brawl - The PAL version, in addition to bug fixes, made all the challenges skippable via Golden Hammer. No more hammer-proof challenges.
- Castlevania II: Belmont's Revenge: All versions have two sub-weapons, but in Japan they're the Holy Water and the Boomerang Cross, while in the overseas versions the Cross was replaced with the Axe.
- To clarify: The Holy Water and Boomerang Cross are generally considered the best sub-weapons in the series — used properly, they can hit multiple times for absolutely massive damage and in some games the Holy Water can trap enemies in helpless hit-stun. The Axe... is generally considered borderline useless — it does decent damage, but it has a weird arcing trajectory that makes it hard to hit anything not positioned above you.
- Donkey Kong Land 2: The English version has cheats allowing you to start with 50 lives, 40 Banana Coins, or 47 Kremkoins, but these cheats were removed in the Japanese version.
- Operation C - The Japanese version (simply called Contra) has the Stage Select mode activated by default, while the overseas releases required a cheat code.
- Pokémon Red and Blue - There is an infamous glitch where surfing on the east coastline of Cinnabar Island (or Seafoam Islands) yields strange Pokémon, depending on various factors. The most well known example of this is MissingNo., which, while causing nasty side effects like corrupting the player's Hall of Fame, is also useful for duplicating item the sixth item in your bag to cheat. The glitch can also be used to find and capture Safari Zone Pokémon easily this way. However, apparently this bug was already discovered before the games were released in Spanish (and possibly other languages), where the bug was fixed. This makes the game slightly harder for the small percentage of the player base who used this cheat.
- Tiny Toon Adventures 2: Montana's Movie Madness - The Amercian version was released in November 1993 and is notorious for its challenge level, not just in the levels themselves, but also due to the fact that you had limited lives and continues, you got an extra life for every 3000 points, and a continue if you beat one of the bonus games, and the bosses had three hit points. The Japanese version was released one month later and has numerous differences, including smaller and easier levels, with some sections of the levels being removed completely, easier bonus games, an extra life for every 2000 points, the bosses having two hit points instead of three, infinite continues, the bonus games giving you an extra life if you beat them, and a password system.
Game Boy Advance
- Mario & Luigi: Superstar Saga - In the Japanese version, Heart Blocks were in some certain places where you could get a free heal. The North American release, which was released earlier, did not have this feature.
- Another interesting but minor 'difficulty' change was adding a whole bunch of button icons everywhere in the menus. Like how the level up screen has Lakitu tell you how to move the cursor up and down or the bit in the intro where Toad is initially playable has a D Pad icon appear when you can take control of him.
- However, it was also subverted in one very, very blatant way; the shop prices were way harsher in Japan. Normal items cost between 10 and 100% more, and some pieces of gear cost literally THREE TIMES more than it did in US versions of the game. One pair of pants in the US version? 500 coins. Same item in Japanese version? 1750 coins.
- Metroid: Fusion - The Japanese version actually came out after the American version, so Nintendo took the time to add selectable difficulty settings. There are three, Easy through Hard, and they work much like the ones in Zero Mission. Easy mode is of particular interest to speed runners because it eliminates many of the random factors that can cost time.
- Pocky & Rocky With Becky (Originally released in Japan as Kiki Kaikai Advance) - In Japan, the characters were upgraded from One Hit Point Wonders to Two Hit Point Wonders, and a password system was added.
- Mario & Luigi: Partners in Time - Like the GBA original, the US version was released first, making the Japanese version easier in most extents. The items are cheaper in the Japanese version, many bosses have half the health, and the badges and gear have more stat boosts. Heck, even things like the UFO to target in certain boss battles staying in one place, the save point being inside a shop in one area, certain bosses using less effective healing items, and three of the bosses having counterattacks. Unlike the prequel, the European release actually carried over the Japanese version's gameplay.
- Pokémon HeartGold and SoulSilver - Due to European ratings board aggression against any reference to gambling, the overseas releases did not feature the original Game Corner. Instead, everyone else got a game that is best described as "minesweeper + sudoku + (noticeably less) Luck-Based Mission". While attempting to earn prizes early would be a pain if you could actually lose money, it is instead fairly easy to get Dratininote when you can't.
Sega Mark III / Master System
- Ashura - An overhead action shooter that was released as a Rambo in the United States and as Secret Command in Europe. The original Ashura version released in Japan was slightly harder, as some of the tougher enemies required more bullets to kill or were only vulnerable using fire arrows.
- Black Belt - Originally released in Japan as a game based on Hokuto no Ken. While the difference are mostly cosmetic due to the change in characters and setting, one of the bosses (the fire-breathing giant Devil's Rebirth) was replaced with a new enemy (Gonta the sumo wrestler) who fights with all new attack patterns. Black Belt also has more health power-ups compared to Hokuto no Ken.
- Captain Silver - The American version is missing two stages and numerous enemy characters that were featured in the Japanese and European versions of the game, resulting in a much shorter and easier game.
- Double Dragon - The Japanese version only allows the player to continue up to two times any time, whereas the U.S. version allows unlimited continues until the final stage, which makes the game easier or harder depending on your skill level.
- Wonder Boy In Monster Land - Released as Super Wonder Boy: Monster World in Japan, the Japanese version gives all the enemy characters twice the hit points they have in the American version.
Mega Drive / Genesis
- Castlevania: Bloodlines - The US version was made harder.
- Contra: Hard Corps - The Japanese version (Contra: The Hard Corps) features a three-point health gauge, unlimited continues and numerous cheat codes not present in the overseas releases. The European version is almost the same as the American in terms of difficulty, only it gives out less continues to compensate for the slower playing speed that makes enemies more predictable.
- Decap Attack - Released in Japan as an anime Licensed Game, Magical Hat no Buttobi Turbo! Daibouken. Decap Attack featured a Life Meter system where the Magical Hat version made the player a One Hitpoint Wonder. To compensate for this, the stages in Decap Attack were redesigned, with more and harder enemies.
- Dynamite Headdy - The player starts with 3 continues in the Japanese version but none in the American version (additional continues can be earned in both versions) and had a few other tweaks that made the American version more difficult, like Trouble Bruin's energy balls, which can't hurt you in Japan, but will in America. On the other hand, Twin Freaks, one of the hardest bosses in the game, has twice as much health in the Japan version (but the player can cheat against it, unlike in the American version).
- Rocket Knight Adventures - All versions have the same four difficulties, but the names are different: the Japanese version has "Normal", "Hard", "Very Hard", and "Crazy Hard". In Europe, "Normal" was renamed "Easy". And in the US, the same difficulties were called "Children", "Easy", "Normal", and "Hard". Notably, in the other versions, Very Hard and Crazy Hard require codes to unlock, but in the American version, all four difficulties are immediately selectable.
- Additionally, in the US and European versions, if you play on the lowest difficulty, you will skip the final boss fight and get a message that this is not the true ending. The final boss fight happens on every difficulty in the Japanese version.
- Streets of Rage 3 - The difficulty levels were adjusted between the Japanese and American releases. The Japanese version had Easy, Normal, Hard, and Very Hard. The American version removed Very Hard, but at the same time, they buffed up the difficulty levels by one. Easy is equal to the Normal level from the Japanese version, Normal is Hard, and Hard is Very Hard. On top of having a harder game, enemies in the American game did more damage to you on harder difficulties while damage was fixed no matter what in the Japanese game. If that wasn't bad enough, Easy mode on the North American version only lets you play up to Stage 5, after which you'd get a fake ending and are encouraged to try again on a harder level. This could be averted through the use of cheat codes. The Japanese version let you beat the game on Easy.
- If that wasn't enough, the American version also gave the bosses more health depending on the difficulty. The most glaring example is the final boss in round 7A, where, in hard mode, he has nine health bars.
- The game also pulls this trope in reverse for the special attack and dodge system. The Japanese version has you lose more health if you used a special attack without a full power meter and the roll move doesn't make you move far. Streets of Rage 3 outside of Japan improved these mechanics where special attacks now don't sap a lot of health without a full charge and the roll mechanic pushes you a lot further to avoid attacks. These improved mechanics are encouraged to be used all the time due to the adjusted difficulty outside Japan.
- Wonder Boy In Monster World - In the Japanese version (Monster World III) Death Is Cheap — it warps you back to the last inn you saved at and charges you the normal inn fee (you can even just kill yourself if you don't feel like walking back). In the English version, if you die, it's Game Over; you have to use the Return spell to warp back instead.
- Also the final boss is much harder in the American release, instead of a normal floor, the floor is a conveyor belt with a buzzsaw on it.
- The Dynastic Hero (a TurboGrafx-CD port) is based on the Japanese version of the game in all regions.
PC Engine / Turbo Grafx- 16
- Exile - The game was panned for being "too hard" in Japan, so Working Designs tried toning it down a little... making the game a cakewalk in the process. The reverse happened with its sequel, where it was basically made pretty close to unwinnable.
- J.J. & Jeff - An Americanized version of Kato-chan & Ken-chan, a side-scrolling platformer based on a Japanese comedy duo of the same name. The changes to the game were mostly cosmetics, but one change that actually affect the play mechanics a bit was that the player's fart attack was changed into a spray can, changing it from a back attack to a front attack.
- Crash Bandicoot (1996) - The Japanese version made the first boss harder (five hit points instead of three and he attacks faster as he takes damage) and removed the password system (and in this game, you could only save after completing a bonus round or getting a gem), but it also shortened a level, switched two levels around to smooth out the difficulty curve, and added hints from Aku Aku (the hints are also in the Japanese versions of the sequels).
- The PAL version slowed down Ripper Roo but removed a checkpoint from The Lab.
- Crash Bandicoot 2: Cortex Strikes Back - The PAL version widened the radius of the Belly Flop, slowed down the shield enemies, and made it easier to clear Turtle Woods without breaking any crates (which is required for the Blue Gem), but if you die during a "Death Route", you don't get a second chance.
- Crash Bandicoot 3: Warped - In the PAL version, the power you get for beating the final boss (which enables Crash to run faster) is more effective than in the American version, making the timed goals easier. However, the target times for one of the time trials (on which you can't use that power) were revised. Besides that, the two hidden levels give you Platinum Relics automatically in the US version, but not the PAL version. Enemies were changed as well: one enemy has an extra hit point, another fires more missiles at once, and several attack faster. Additionally, dying repeatedly on a level will eventually give you two Aku Aku masks in the US version, but never more than one in the PAL version, and the differing "Death Route" mechanics from the last game also apply.
- Compared to the US version, the Pura levels had more enemies added in the PAL version and some enemies removed in the Japanese version.
- Final Fantasy VII - Two optional bosses were introduced for the export versions that later made to the International version in Japan: Ruby WEAPON and Emerald WEAPON. Emerald had the Aire Tam Storm, which does 1111 damage for every materia the player uses; of course, nobody knew this, so you'd better just hope two of them are Final Attack-Phoenix. It's also a Marathon Boss, but in this case, one that actually is difficult (after 20 minutes, there's a Non-Standard Game Over) if you don't have the Underwater materia. Ruby, by contrast, takes two of your party members out. If you use Knights of Round on Ruby, it responds with Ultima. (You can, however, equip Ultima-Elemental to actually absorb non-elemental attacks.)
- Sephiroth, on the other hand, was made significantly easier in the US version. In the Japanese version, his ultimate attack Supernova is not a Percent Damage Attack like it is in the US, so it can kill you, and quite easily at that.
- Final Fantasy VIII - Guardian Forces are drawable in every boss encounter in the final level in case you missed any the first time around, but missing these the second time around makes them Lost Forever. The Japanese version did not give players a second chance in drawing a Guardian Force in the final level.
- MediEvil - In the Japanese version, the Dragon Armor drains your health while equipped and the Pumpkin King boss regenerates health, but you can buy more ammo for the powerful Lightning weapon. (In other versions, once you use up its ammo, it's gone.)
- Metal Gear Solid - The export versions have four difficulty settings (Easy, Normal, Hard and the unlockable Extreme mode), whereas the Japanese version only has two settings (the standard one, which is identical to the export version's "Easy" mode, and a "No Radar" mode that is also identical, but with the Soliton Radar turned off). The codenames used to evaluate the player's performance in the Japanese version were transferred over to the Hard and Extreme modes in the export versions.
- Persona - A more difficult alternate quest was cut from the US release. Also, in a failed attempt at making the game easier, they made it harder by reducing the encounter rate to 1/3 and tripling the EXP gained from battles. The problem is, rather than their intended goal of leaving the player with the same amount of EXP with fewer battles... they forgot to factor money into it, leaving the player permanently poor and unable to afford the standard weapons.
- The reduced fights also meant less chance for negotiations which allowed the player to create new Personae, get items, and stop fights whenever possible.
- On the other hand, the reduced encounter rate also meant that characters had a better chance to take advantage of their SP (Spirit Points used for magic) regenerating while walking outside of battle, making SP management and healing easier.
- Resident Evil - The Japanese version has an auto-aiming function, as well as more ink ribbons and ammo available. The developers thought of furthering the difficulty in the export versions by making storage boxes not linked, meaning that items that were stored in one location couldn't be retrieved in another. While this was only implemented in review copies and not in the retail version, the idea was brought back to the "Real Survivor" mode featured in the GameCube version.
- Resident Evil 2 - In the American version, some of the item and enemy placements are different from the Japanese release. The U.S. version's difficulty setting is featured as an extra mode in the Dual Shock-compatible re-release of Biohazard 2.
- Silhouette Mirage - The U.S. version was borked entirely, as it originally featured the prototype of the color-swapping mechanic that later went into Ikaruga.
- Thousand Arms - In the original Japanese version it was fairly easy to defeat bosses before you could see the full range of their rather extensive combat quotes and animations. Atlus overcompensated for the US version, resulting in a game that, on top of the other issues with its combat system, is notorious for every boss being a tedious Marathon Damage-Sponge Boss.
- Tomb Raider 2 - The Japanese version features much weaker enemies and has certain traps removed.
- Devil May Cry 3 - All the difficulties were bumped up by one notch for the original US release, so Easy was Japanese Normal, Normal (the only difficulty available at the beginning) was Japanese Hard, etc. The game was no cakewalk in the original release, and the "adjustment" elevated it to hair-tearing for first-time players who didn't want to drop down to Easy. The Special Edition re-release restored the original difficulties, with the American Hard becoming Very Hard.
- It also restored the option of using the Gold Orbs (let you revive right where you died) from the JP version... but still let you use the US version's Yellow Orbs (let you revive outside the last door you walked through, like the original DMC).
- Final Fantasy X - The PAL version added the Dark Aeons, which are evil versions of your summons that function as a total of 8 Bonus Bosses (9 if you include Penance, who is unlocked after beating all of the Dark Aeons). However, they're at a higher level than the actual Endgame Bosses- in fact, most guides basically come out and say "Your party for these fights should have AT LEAST 9999 HP, their fully activated Celestial Weapons, and the following very difficult to get armor perks..."
- They're there because the PAL version is based on Final Fantasy X International, rather than the US version or original Japanese release, to make up for the delay and the technical issues of porting an NTSC game to the PAL image standard.
- However, the upcoming worldwide HD remake of FFX will be based on the PAL version, meaning everyone can now get in on the increased difficulty.
- Ico - The Japanese and European versions were released after the American one and featured an increased difficulty, in addition to other bonus content. Notably, a few puzzles were lengthened by adding trickier bits, and the enemies are a lot faster and more aggressive - spawning more frequently than they did in the American version (where they only spawned if the player left Yorda in a different room or at scripted events).
- Fixed in the PS3 rerelease, which also included all the extras left out of the original American version.
- Metal Gear Solid 2: Sons of Liberty - The American version was the first version released. The Japanese and European versions later added a questionnaire at the start of the game that affected, not only which difficulty levels the player could choose, but also whether or not the player skips the Tanker chapter and starts right off at the Plant chapter. The European version also featured an unlockable "European Extreme" setting that was even harder than the already Harder Than Hard "Extreme" setting. The E-Extreme setting was later added to the Substance version in all releases.
- Metal Gear Solid 3: Snake Eater - Like the previous game, an E-Extreme setting was added for the European version, which was also featured in all version of the Subsistence update.
- Mister Mosquito - In the Japanese version, you could suck blood from any exposed skin, but in the American and European versions, you could only suck from small designated points on the body, some of which were literally impossible to reach without dying.
- Shinobi- The Japanese and European version had the following difficulty settings: Easy, Normal and Hard. Easy was removed entirely in the US release, which shifted the collectables from Normal to Hard and added in an extra "Super" difficulty with the Hard mode collectables. Super is the only difficulty where default character Hotsuma can't kill the later bosses in one hit.
- Dissidia: Final Fantasy - There's a ton of differences in the US version and the original Japanese version which was also re-released as an Updated Re-release. See here for additonal info.
- Crisis Core - In the Japanese version, if Zack is KO'd during a side mission, it is a Game Over. In the US version, the game treats you as if you abandoned the mission and return you to the save point. You can use this to your advantage to steal an infinite amount of otherwise rare Phoenix Downs from the Bonus Boss and use them to max out your cash and all your materia.
- Death Smiles - The American runs at around 150% the speed of the Japanese version, making it harder and preventing people from accurately comparing scores across regions—an unusual change considering that American players are, on average, less experienced with and proficient at the Bullet Hell genre than Japanese players. In a moment of Tropes Are Not Bad, the developers have stated that the US version is the game they had intended to make from the start, and some parts of the Japanese version were complained about as too slow.
- Age of Pirates 2: City of Abandoned Ships - The Russian version features three difficulty sliders - difficulty, rate of experience gain for the player, and rate of experience gain for enemies (i.e. how the much ahead or behind the level scaling will be). The English version lacks the latter slider altogether and it's set in the config files to the lowest possible value, making some parts of the game too easy and others (non-scaled) seemingly overly difficult in comparison.
- Combat Arms - In the Korean version, if you played the mission with the Sand Hog, one of the enemies had dynamite strapped to themselves and tried to run into you. The North American version did not have that.
- Dungeon Fighter Online - When Nexon released the American version, they upped the EXP requirements for levels by THREE TIMES the amount required in the Korean version. Not that this changes the difficulty all that much, but it does make for a LOT of grinding to level up. So while you'd only be at level 20 on the American version, someone on the Korean version would be close to level 35.
- As a general case, PAL is at 50Hz and NTSC is at 60Hz. Games that process the game frame-by-frame (practically most of them) will operate 20% faster on a 60Hz framerate than they do on a comparable 50Hz system. Unless the developers compensate for this, the European versions of a given game will be easier due to increased time to react.
- A notable example of this is Sonic The Hedgehog for Mega Drive / Genesis, due to the game's speed-based nature. Whilst the PAL version is certainly fast, the game was developed for NTSC, which plays faster, and many players in Europe believed that the US and Japanese versions were better as a result (they also had scrolling backgrounds). In the rereleases, the game can be played at the intended speed.
- Catherine (PS3, Xbox 360) - The game was so difficult that a patch was released to make it easier. In the Japanese version, the patch can be turned on or off once installed, but the American version comes patched and it can't be turned off. Also, the "Undo" ability, which allows you to rewind up to ten of your last moves, was added to Normal difficulty in the American version.
- Toy Story (SNES, Genesis) - A password continuation system not present in the American version was added to both the Japanese and PAL versions,.
- The early Guitar Hero and Rock Band games have a rare unintentional version of this trope. Due to a bug the game seems not to register some of the strums above a certain strumming speed, in extreme cases only registering about half of a players strums. While details are uncertain it seems the bug is linked to the television refresh rate, with lower refresh rates having a higher tolerance for strumming speed. Since PAL mostly uses a 50Hz refresh rate compared to NTSC's 60Hz you can get away with strumming a little bit faster. This means that in songs that have very fast strumming it is much less difficult to get a Full Combo while playing on a PAL system.
- Due to NTSC's refresh rate, however, one song (Trogdor) is completely unable to be Full Combo'd on Expert or Hard on NTSC, ESPECIALLY NTSC PS2. Most of the documented F Cs for either difficulty are on PAL PS2 through the use of SwapMagic (or being in Europe or a PAL-using area).
- Kirby's Avalanche and Dr. Robotnik's Mean Bean Machine, both being graphically modified versions of Puyo Puyo made for the foreign market, had a much shallower difficulty curve than the original.