''VideoGame/MegaManAndBass'' was released on the SuperFamicom in 1998 as a GaidenGame to ''VideoGame/MegaMan8''. [[NoExportForYou It was only released in Japan]] under its Japanese title, ''Rockman & Forte'', since the SNES was dying out everywhere else in the world by that time. It was eventually ported to the GameBoyAdvance in 2003 where it saw a Western release.

The robot leader King is leading a [[RobotWar war against humanity]]. He plans to capture data from all the fighting robots he can find. He already ransacked Dr. Wily's lab and recruited two of his ''VideoGame/MegaMan8'' Robot Masters. With the other six robot masters, he leads a vicious assault against the robot museum, hoping to find more data.

[[ChronicHeroSyndrome Naturally]], Mega Man is dispatched to fight King and halt the rampage. Dr. Wily doesn't like the new guy one bit, and dispatches his [[TheDragon Dragon]] Bass to crush King's army. [[TitleDrop Mega Man and Bass]] form an [[EnemyMine uneasy alliance]] to handle the new guy.

You can choose to play the game as either character. Mega Man has the charge shot and slide. [[MightyGlacier He is not very nimble but takes less damage from attacks.]] Bass has a DoubleJump and a High Jump, as well as a dash function. He can also rapid fire his Bass Buster in seven directions. [[FragileSpeedster However, he takes extra damage and his Bass Buster is relatively weak.]] Effectively, you choose tough stages or tough bosses based on your character. Also, the stages are tiered - you must fight Cold Man, Astro Man, or Ground Man first before more stages open up.

* Cold Man, weak to Lightning Bolt, gives [[AnIcePerson Ice Wall]]
* Burner Man, weak to Ice Wall [[note]]or rather, [[PuzzleBoss you need to stun him with Ice Wall and then push it to send him crashing into the spike pits on either edge of the room]][[/note]], gives [[FireBreathingWeapon Wave Burner]]
* Pirate Man, weak to Wave Burner, [[note]]for added hilarity use it when he wraps himself in a bubble[[/note]] gives [[StickyBomb Remote Mine]]
* Ground Man, weak to Remote Mine, gives [[ThisIsADrill Spread Drill]]
* Tengu Man, weak to Spread Drill, gives [[RazorWind Tengu Blade]]
* Magic Man, weak to Tengu Blade, gives [[DeathDealer Magic Card]]
* Astro Man, weak to Magic Card, gives [[ProjectedMan Copy Vision]]
* Dynamo Man, weak to Copy Vision, gives [[ShockAndAwe Lightning Bolt]]

In addition, there are 100 data [=CDs=] to be found. Each one provides a picture and some information on a Robot Master or character in the ''VideoGame/MegaManClassic'' universe (up to ''VideoGame/MegaMan8'').
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!!This game contains examples of:

* AllThereInTheManual: The data [=CDs=] serve as this, giving a picture and a quick bio of various characters found throughout the game.
* AttackDrone[=/=]DoppelgangerAttack[=/=]DoppelgangerSpin: Copy Vision creates a duplicate that fires shots in straight line. It is also a decoy, as enemies will aim at the copy instead of you.
* BagOfSpilling: Mega Man lost the ability to swim from ''VideoGame/MegaMan8''. A few items from the eighth game, too, have been removed in this journey that were there.
* BlindIdiotTranslation:
** Many of the data [=CDs=] have rather nonsensical translations. For example, [[VideoGame/MegaMan4 Pharaoh Man]]'s Bad Point is translated as "Too nice to women" when it was originally "[[CasanovaWannabe Weak to Beautiful Women]]", while Dr. Light's Bad Point is (rather infamously) a simple, contextless "Douchie" (which was supposed to be "naive").
** Also from the same port is the instruction manual. Auto is referred to by his Japanese name, Lightot, and "Wily" is misspelled "Wiley" as in the third game.
* CallBack:
** The intro stage is one big ContinuityCavalcade of previous games in the series. There's a fire portion reminiscent of Fire Man's stage from ''1'', hallways filled with drilling Moles like in Metal Man's stage from ''VideoGame/MegaMan2'', a rainy segment similar to Toad Man's in ''VideoGame/MegaMan4'', a ship with rising and falling water from Blizzard Man's stage in ''VideoGame/MegaMan6'', and finally at the end you fight a toned-down version of the Green Devil from ''8''.
** The last level has a BossRush as usual, but the bosses are fought sequentially with platforming sections in-between - just like [[VideoGame/MegaMan1 the first game]].
* ChestMonster: There are chests throughout the game that contain power-ups or [=CDs=], but some will come to life when shot and are very aggressive.
* CombiningMecha: The three minibosses of King 2, Ground Tank, Air Tank, and King, combine to form the boss of the level.
* ContinuityCameo:
** Astro Man and Tengu Man are bosses from ''VideoGame/MegaMan8'', although their attacks and patterns (and weapons) changed.
** King uses the Gemini Laser from ''VideoGame/MegaMan3'' during the fight with him. It luckily doesn't hit as hard.
* DamnYouMuscleMemory: Just like in ''VideoGame/MegaManX'', Bass can dash by pressing the dedicated dash button, or by double tapping forward. The Game Boy Advance port doesn't have a button, so you must double tap. That split second will result in countless mistakes and deaths. Thankfully, Capcom would later remap the dash to Down + Jump in ''VideoGame/MegaMan10'', the same command for Mega Man and Proto Man's sliding.
* DeathDealer[=/=]LifeDrain: If Magic Man hits you with the Magic Card, he gains 2 life. [[PowerCopying Your Magic Card]] can grab powerups and shoot through walls.
* DemotedToExtra: So where was Proto Man in all of this? He was fighting King at the robot museum where he [[HalfTheManHeUsedToBe got chopped in half.]] He got repaired just in time to exhaust himself destroying [[HopelessBossFight King's shield]] and then snuck into Dr. Wily's lab to destroy all the data he had on King. But he's not playable. This did end up resulting in at least a couple of [[UrbanLegendOfZelda rumors]] that made the rounds claiming that Proto Man could be unlocked as a playable character.
* DenialOfDiagonalAttack: Mega Man still has this problem. Bass doesn't. The Magic Card can be fired upward and the Ice Wall slides along the ground, though. The Wave Burner covers the floor and can destroy some otherwise invincible ground enemies.
* DivergentCharacterEvolution: In Bass' previous appearances (as well as his playable stint in ''The Power Battle'' and ''The Power Fighters''), the Bass Buster functioned identically to the Mega Buster. To differentiate Bass from Mega Man (and make things fair considering his vastly superior mobility), his Buster was drastically altered, which stuck for ''Rockman & Forte: Challenger from the Future'' and ''VideoGame/MegaMan10''.
* DoNotRunWithAGun: Bass has to brace himself when firing the Bass Buster. Mega Man doesn't.
* EasyLevelsHardBosses: Bass finds stages to be very easy because he can DoubleJump over almost everything and he can shoot at the rest. Bosses are a pain because his [[DeathOfAThousandCuts rapid fire Bass Buster deals one damage,]] then triggers the Boss's MercyInvincibility.
* EnemyMine: Normally Bass would be trying to kill Mega Man, not help him out.
* FireIceLightning: Burner Man, Cold Man, Dynamo Man; respectively. Just like the first game, Lightning beats Ice beats Fire.
* GottaCatchThemAll: There are 100 data [=CDs=], holding information about many characters and robot masters.
* HardLevelsEasyBosses: Mega Man finds stages to be very difficult due to his reduced mobility and [[DenialOfDiagonalAttack trouble hitting annoying enemies.]] His enhanced defense and powerful charged shots will quickly demolish bosses.
* HartmanHips: Magic Man.
* HijackedByGanon: King eventually realizes his master and creator, Dr. Wily, lied to him about the nature of humanity. At this point the good doctor shows up, ups King's brainwashing levels, and retreats to his fortress.
* HopelessBossFight: King's Tower Shield is indestructible. The first phase of the fight involves waiting him out and dodging his attacks. Finally, Proto Man shows up and destroys the shield to give you a fighting chance.
* {{Interquel}}: Became this when ''VideoGame/MegaMan9'' came out. The [=ROM=] data even calls it "Mega Man 8.5."
** Before then, some people actually ''did'' call this game "''Mega Man 9''."
* InvulnerableAttack: Equip the Tengu Blade and you can slide or dash through everything. Including [[ForMassiveDamage Magic Man.]]
* KaizoTrap:
** The boss of the first fortress stage. You must balance yourself on a pulley with the boss above an acid pit. Once your side is low enough, the boss will emerge and you can attack it. When you kill the boss, the platform you are on will sink instantly, and if you don't jump to safety then you will burn in the pit as the boss dies. Strange because during the fight itself you will take damage instead.
** [[InstantWinCondition Inverted]] with King Jet. Once it starts smoking, feel free to leap into the bottomless pit to skip its defeat animation and respawn in the next part.
* MarathonBoss: King. Fights with his shield. Once it's destroyed, he pulls out an axe and uses the [[VideoGame/MegaMan3 Gemini Laser]]. Once you beat him, he retreats and combines with his Tank and Jet to form Perfect King.
* MarathonLevel: The second Fortress level.
* MixAndMatch: Pirate Man is both an aquatic- and explosive-themed Robot Master. Burner Man, the fire boss, takes place in a jungle.
* NinjaPirateRobotZombie: Pirate Man is a robot pirate.
* NintendoHard: Probably the hardest game in the series.
* ObligatorySwearing: The SNES FanTranslation is rife with this.
--> '''Bass:''' So, you intended to use King to take care of me, did you? You dirty son of a '''bitch'''!
* PyroManiac: Burner Man, if his [[http://images4.wikia.nocookie.net/__cb20100825205703/megaman/images/b/b3/Burnerman.png concept art]] is any indication. You also fight him in a forest. Apparently King tricked him into believing that he must burn a forest daily or a bomb inside him will explode.
* RedemptionEqualsDeath: [[spoiler:King]], although it turns out to be a DisneyDeath according to Mega Man's ending.
* RightMakesMight: [[spoiler:Proto Man gives Bass a lecture during his ending that is pretty much this. He says that Mega Man will always be the better fighter because he fights for a just cause, while Bass only fights to satisfy his ego.]]
* RobotWar
* SchrodingersPlayerCharacter: No matter which character you play as, you must defeat all the Robot Masters and raid King's Castle. The other one never shows up.
** RoadCone: ''Mega Man 9'' implies that the canon path was Mega Man's. Bass's ending seems to have happened though.
* SequelDifficultySpike: Megaman 8 had checkpoints, simple boss fights, loads of extra lives, and had no penalty when you get a game over. It was the easiest game in the franchise. And then came this game.
* ShowsDamage: A couple of the bosses react to their weaknesses when they are in certain states of attack. [[CrowningMomentOfFunny Usually with a goofy look on their faces.]]
** Your reward for pushing Burner Man into the spikes is that screams and grabs his butt as he leaps back onto the arena.
** Slide through Magic Man with the Tengu Blade. His eyes bug out as drops some of his playing cards.
** If Pirate Man enters a bubble to BeTheBall, you can stop his rolling attack with Wave Burner. At this point the bubble bursts and he flops to the floor, shocked.
** Stick a Remote Mine on Ground Man and watch him pop out of the floor or ceiling every time he tries to dig.
** Cold Man is a warmup boss because by the time he finishes bugging out from getting struck by a Lightning Bolt, you can fire another one.
** Tengu Man flops to the ground briefly when hit by the Spread Drill.
* {{Simon Says|MiniGame}} MiniBoss: "Passworder", the sub-boss of Astro Man's level.
* SmartBomb: Lightning Bolt turns you invincible and hits everything on screen for massive damage.
* SuperDrowningSkills '''and''' SuperNotDrowningSkills: In the intro stage, Mega Man will fall to his death if he falls in the water. This is turned into SuperNotDrowningSkills for the remainder part of the game.
* TemporaryPlatform: The Ice Wall is this. You can push it, jump on it, and slide away.
* ThisIsADrill: Ground Man uses the Spread Drill, which can bisect twice to cover a lot of room. He will also drill into the ceiling, dig above you, and then drop a MASSIVE drill from above on you. He can even {{transform|ingMecha}} into a DrillTank.
* UndergroundMonkey: infamously, the Wily Machine and Capsule here are basically the same ones from ''8'', with a few aesthetic changes and new attacks.
* WarmupBoss: And it's the ''[[VideoGame/MegaMan8 Green Devil]]'', of all things. Thankfully, he doesn't split up this time round, and just stands there during the whole battle.
* WoobieDestroyerOfWorlds: Dynamo Man's resentment of humanity and primary motive for aiding King's army is that his unstable electromagnetic force field (courtesy of King tampering with him) makes it lethal for anyone to get close to him. As a result, the robot whose former job was giving tours of a power plant to schoolchildren is forced to live in solitude.
* XanatosGambit: Dr. Wily had his bases covered. Either Mega Man would perish or King would destroy Bass and grow stronger. Or Bass would destroy King and grow stronger. Or Wily would collect all of the robot data King collected and start working on a King Mk II. Bass's ending shows Proto Man ruined the last outcome.
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