History YMMV / Rockman4MinusInfinity

** Shadow Man in the first Cossack stage. Your last [[spoiler:non-BonusBoss]] fight with him is also the easiest; you can easily rapid-fire him with your buster and he'll die in a few shots.

** Wily Stage 4 is not a cakewalk like it was in the original ''Mega Man 4''. First, you have to fight three Chimerabots which are hybrids of some of the most annoying boss combinations possible (Cut Man with Elec Man's speed and attack pattern, Wood Man with Quick Man's spastic speed and less frailty, and Needle Man with Gemini Man's cloning ability [[spoiler:or [[BonusBoss Super Shadow Man]]]]). After beating the third Chimerabot [[spoiler:or Shadow Man]], you fight the Wily Capsule. Final boss, right? NO. [[spoiler:You then go through a creepy underworld-like level with bubbly enemies that are hard to kill with any weapon. Getting around is also hard without dying]]. Fortunately, [[spoiler:the true final boss in the game right now isn't hard, thanks to the EleventhHourSuperPower Proto Man eventually gives you]]. After [[spoiler:defeating ''that'' final boss, you then go through an EscapeSequence segment where you have a limited amount of time to escape the exploding Wily Castle using Hell Wheel]]. Then after that, you're ''finally'' done.

* GoodBadTranslation

*** Toad Man's movements are now erratic and rapid. He'll jump if you try to shoot him or get close to him. Watch out if he hits you with his rain attack; he'll [[BalefulPolymorph turn you into a frog]] and attempt to squish you.

** Pharaoh Man in Pharoah Man's stage because it has two parts: one on the outside and one inside the pyramid. At the end of the first part, he destroys the arena and starts the second part by [[TurnsRed turning red]], getting a health refill and becoming a berserker at the same time. The fight resumes, but you're under the curse of the pyramid.

* BigLippedAlligatorMoment / GiantSpaceFleaFromNowhere: Most of the Robot Master bosses that aren't part of the main roster.

** Hell Wheel allows you to speed through the stages and in earlier versions, it could kill almost every enemy. Use this in Wily Stage 2 and the whole first half (Except for the Jumbigs) is an entire joke. Many people doing playthroughs tend to use this ability.

** [[spoiler:The ?Dagger, which turns ''every'' hit into a CriticalHit. A worthy reward for beating [[BonusBoss Super Shadow Man.]]]]

*** Toad Man's movements are now erratic and rapid. He'll jump if you try to shoot him or get close to him. Watch out if he hits you with his rain attack.
*** Dust Man can heal himself with your attacks except Toad Spell when he [[WeaponsThatSuck sucks in his debris]]. If he sucks you up, he turns you into an E-Tank. Mash the buttons quickly or he will give you a OneHitKill by booting you into the incinerator.

** The curses at Pharaoh Man's stage can be a pain the ass, especially the Roulette Curse.

** The Chimerabots due to being fought in the final level. The lack of music prior to fighting them indicates that you're about to fight a suitably epic boss for a game as crazy as this, but instead you fight...hybrids of Robot Masters from the previous games. The Petit Robot Masters would also count (considering they are technically the final bosses) if the game didn't opt to end on an EscapeSequence instead.
* SugarWiki/AwesomeMoments:
** [[spoiler:Mega Man using Rush Cannon on Wily's saucer in the best ending (or ramming him with Hell Wheel in the normal one).]]
** Just the fact that [=PureSabe=] took possibly the least well received NES ''Mega Man'' game and turned it into something so much more than a mere level hack.

** Dr. Cossack, as well, assuming you came into the fight with the Spark Chaser. If you didn't, prepare yourself for a rough fight.
---> ''But it's [[WeirdnessCoupon [=PureSabe=]]], [[SugarWiki/AwesomeMoments so it's manageable.]]''

* GameBreaker: Almost every single weapon is a game breaker in a certain situation. It can be argued that this is part of the fun of playing this game due to it still being NintendoHard even with these.
** Holdable Control Ring Boomerang slaughters stationary minibosses, and if you have the pertinence it can even take down the BossInMookClothing Jumbig within a couple of seconds. The fact that it brings items back to you from whatever it destroys makes it extremely useful in parts of the game with constantly respawning weak enemies.

** Rush Cannon and Wishing Star allow you to defeat anything in one hit. Except for major bosses of course.
** Drill Torpedo can be used to easily combat Wily.
** Terra's weapon is this against Cossack.
** Rush Search, which isn't even a weapon, counts. It's quite easy to rack up lives, health, energy for weapons, and sometimes even Energy Tanks just by using it over and over in a safe place.
** [[spoiler:The ?Dagger, which turns ''every'' hit into a CriticalHit. A worthy reward for beating [[BonusBoss Super]] [[ThatOneBoss Shadow Man.]]]]

*** Lets not forget the Wily Capsule. Like most Capsule battles, it appears for extremely brief time periods to fire a moderatly difficult projectile pattern. ''This'' Wily Capsule? It fires many, many, many lasers in seemly random patterns. And to rub salt into the wound, it never stops shooting while on its last legs. Good luck no hitting this boss!

** Wily Stage 2 ... with two Jumbigs.
** Wily Stage 4 is not a cakewalk like it was in the original ''Mega Man 4''. First, you have to fight three Chimerabots which are hybrids of some of the most annoying boss combinations possible (Cut Man with Elec Man's speed and attack pattern, Wood Man with Quick Man's spastic speed and less frailty, and Needle Man with Gemini Man's cloning ability). If you [[spoiler:don't die at all from the first two, or during the ''entire game'' for that matter, you fight Shadow Man instead of Gemini/Needle instead, who is possibly the hardest boss in the entire game with a huge array of attack patterns and instant death attacks, but does give you a powerful reward]]. After beating the third Chimerabot [[spoiler:or Shadow Man]], you fight Wily Capsule. Final boss, right? NO. [[spoiler:You then go through a creepy underworld-like level with bubbly enemies that are hard to kill with any weapon. Getting around is also hard without dying]]. Fortunately, [[spoiler:the true final boss in the game right now isn't hard, thanks to the EleventhHourSuperPower Proto Man eventually gives you]]. After [[spoiler:defeating ''that'' final boss, you then go through an EscapeSequence segment where you have a limited amount of time to escape the exploding Wily Castle using Hell Wheel]]. Then after that, you're ''finally'' done.

** [[spoiler:Shadow Man's final appearance has him move ''very'' fast and flood the screen with projectiles. As {{LetsPlay/qzecwx}} put it:]]
---> "Well damn. Puresabe put out all the stops here. 112 HP, no true weakness, invulnerability nullification everywhere, [[OneHitKill OHKOs]], weapon energy drain, twenty-odd different attacks...!"
*** [[spoiler:The reward, however, [[GameBreaker is worth it.]]]]
** [[spoiler: If you manage to survive the brutal and lengthy "True Arena", you meet the dreaded [[Videogame/FinalFantasyV Cockroach Omega]] as the final opponent. He has a truckload of HP (with a full-charged Mega Buster only dealing one unit of damage), he can inflict StandardStatusEffects on you that make the fight {{Unwinnable}}, and he even has a full assortment of attacks that can OneHitKill you, including teleporting you out of the battle, [[AllForNothing making the entire run through the True Arena pointless]].]]

** [[spoiler:The ?Dagger, which turns ''every'' hit into a CriticalHit. A worthy reward for breathing [[BonusBoss Super]] [[ThatOneBoss Shadow Man.]]]]

** Skull Man. He spends most of his time using Hell Wheel, which he can use to bounce off ramps and climb up the walls. He barely uses his buster, but that's the only good time to hit him.

---> ''But it's [=PureSabe=], [[SugarWiki/AwesomeMoments so it's manageable.]]''

* AntiClimaxBoss: Shadow Man in the first Cossack stage. Your last [[spoiler:non-BonusBoss]] fight with him is also the easiest; you can easily rapid-fire him with your buster and he'll die in a few shots.

* SugarWiki/AwesomeMoments: [[spoiler:Mega Man using Rush Cannon on Wily's saucer in the best ending (or ramming him with Hell Wheel in the normal one).]]
** Just the fact that PureSabe took possibly the least well received NES ''Mega Man'' game and turned it into something so much more than a mere level hack.
* BestBossEver: Pharaoh Man in Pharoah Man's stage because it has two parts: one on the outside and one inside the pyramid. At the end of the first part, he destroys the arena and starts the second part by [[TurnsRed turning red]], getting a health refill and becoming a berserker at the same time. The fight resumes, but you're under the curse of the pyramid.

* BreatherBoss: Joe Ni-Nin Va All counts as one because Mega Man can bring in an Apache Joe chopper from the previous section and snipe him from a safe spot.

* EndingFatigue: [[spoiler:No fewer than ''three'' "final bosses", ''and that still isn't the end of the game''.]]

* ThatOneBoss: Toad Man and Dust Man have [[TakeALevelInBadass taken a level in badass]].
** Toad Man's movements are now erratic and rapid. He'll jump if you try to shoot him or get close to him. Watch out if he hits you with his rain attack.
** Dust Man can heal himself with your attacks except Toad Spell when he [[WeaponsThatSuck sucks in his debris]]. If he sucks you up, he turns you into an E-Tank. Mash the buttons quickly or he will give you a OneHitKill by booting you into the incinerator.

* ThatOneLevel: Skull Man's level is made up of various platforms from the ''Mega Man'' classic series over very large BottomlessPits. Beat can make it a little easier.

** Wily Stage 4 is not a cakewalk like it was in the original ''Mega Man 4''. First, you have to fight three Chimerabots which are hybrids of some of the most annoying boss combinations possible (Cut Man with Elec Man's speed and attack pattern, Wood Man with Quick Man's spastic speed and less frailty, and Needle Man with Gemini Man's cloning ability). If you [[spoiler:don't die at all from the first two, or during the ''entire game'' for that matter, you fight Shadow Man instead of Gemini/Needle instead, who is possibly the hardest boss in the entire game with a huge array of attack patterns and instant death attacks, but does give you a powerful reward]]. After beating the third Chimerabot [[spoiler:or Shadow Man]], you fight Wily Capsule. Final boss, right? NO. [[spoiler:You then go through a creepy underworld-like level with bubbly enemies that are hard to kill with any weapon. Getting around is also hard without dying]]. Fortunately, [[spoiler:the true final boss in the game right now isn't hard, thanks to the EleventhHourSuperPower Proto Man eventually gives you]]. After [[spoiler:defeating ''that'' final boss, you then go through an EscapeSequence segment where you have a limited amount of time to escape the exploding Wily Castle using Hell Wheel]]. Then after that, you're ''finally'' done.

** The Mechanical Arena is supposed to be a reference to the Arenas in the Kirby games. However, the first arena is in a fixed order (Robot Masters by DWN, Fortress Bosses, Dr. Wily), while the Arena in the Kirby games were in a random order with the exception of the final bosses. However, [[VideoGame/''KirbyPlanetRobobot'']] is a mechanical-themed game and its Arena is not only mechanically themed, but every single boss fight (including the True Arena) are in a fixed order.

** The Mechanical Arena is supposed to be a reference to the Arenas in the Kirby games. However, the first arena is in a fixed order (Robot Masters by DWN, Fortress Bosses, Dr. Wily), while the Arena in the Kirby games were in a random order with the exception of the final bosses. However, [[VideoGame/KirbyPlanetRobobot]] is a mechanical-themed game and its Arena is not only mechanically themed, but every single boss fight (including the True Arena) are in a fixed order.