[[quoteright:348:http://static.tvtropes.org/pmwiki/pub/images/s-f-x-m-m-big_5030.jpg]]
[[caption-width-right:348:A {{crossover}} made in heaven.]]

->''Having fought countless robot masters over the years, Mega Man is ready to lay back, relax and [[MilestoneCelebration enjoy his 25th Anniversary]]. Getting wind of this, Ryu and his fellow Franchise/{{Street Fighter}}s want one last battle before they let [[MilestoneCelebration their own anniversary finish.]] Charge up your mega busters and stretch out your lightning legs, this is '''Street Fighter X Mega Man'''''!
-->~ '''[[AllThereInTheManual The story included with the README File.]]'''

'''''Franchise/StreetFighter X VideoGame/{{Mega Man|Classic}}''''' began life as a fan game by Seow Zong Hui. He created the game in a similar style to the NES era of ''VideoGame/{{Mega Man|Classic}}'' and the retro-styled ''VideoGame/MegaMan9'' and ''VideoGame/MegaMan10''. After showing the game off to Creator/{{Capcom}} executives, the company offered him official support and released the finished product December 17th -- the date of the 25th anniversary of ''Mega Man 1'''s release -- as [[http://www.capcom-unity.com/mega_man a free, PC-only game]]. Capcom has said that it [[http://ca.ign.com/articles/2012/12/08/capcom-discusses-the-future-of-mega-man could end up released for other platforms.]] Capcom has also [[http://www.capcom-unity.com/brelston/blog/2013/01/18/street-fighter-x-mega-man-v2-now-available released a patch]] that fixes some bugs in the game, adds in a ''VideoGame/MegaMan2''-style password system and adds a new challenger.

Rather than Robot Masters, Mega Man faces the following World Warriors as bosses:

* [[VideoGame/StreetFighterII Blanka]]
** Ultra Combo: Shout of Earth
** Weapon: [[AbnormalAmmo Tropical Hazard]] (Damages enemies, can be kicked around as a projectile, and used as a trampoline to get to high places)
*** Weakness: [[spoiler:Yoga Inferno]]
* [[VideoGame/StreetFighterII Chun-Li]]
** Ultra Combo: Hosenka
** Weapon: [[SpamAttack Lightning Kick]] (High damage, close-range melee attack)
*** Weakness: [[spoiler:Hadoken]]
* [[VideoGame/StreetFighterIV C. Viper]]
** Ultra Combo: Burning Dance
** Weapon: [[EyeBeams Optic Laser]] (Laser that has priority over other projectiles)
*** Weakness: [[spoiler:Lightning Kick]]
* [[VideoGame/StreetFighterII Dhalsim]]
** Ultra Combo: Yoga Catastrophe
** Weapon: [[PlayingWithFire Yoga Inferno]] (Flame wave that deals multiple hits and can be aimed up or down)
*** Weakness: [[spoiler:Optic Laser]]
* [[VideoGame/StreetFighterAlpha Rolento]]
** Ultra Combo: Take No Prisoners
** Weapon: [[ThrowDownTheBomblet Mine Sweeper]] (Throws an arced bomb that deals huge damage)
*** Weakness: [[spoiler: Soul Satellite (orbiters only, shots do 1 damage)]]
* [[VideoGame/StreetFighterAlpha Rose]]
** Ultra Combo/Weapon: [[ReverseShrapnel Soul Satellite]] (Two floating orbs that defend against projectiles and damage enemies, can also be thrown as a fireball)
*** Weakness: [[spoiler:Tropical Hazard]]
* [[VideoGame/StreetFighterI Ryu]]
** Ultra Combo: Metsu Hadoken
** Weapon: [[KamehameHadoken Hadoken]] (Upgraded Mega Buster, can be charged for [[PlayingWithFire Shakunetsu Hadoken]], which deals more damage and is extremely fast)
*** Weakness: [[spoiler:Aegis Reflector (reflected Hadokens, collision with reflector does 1 damage)]]
* [[VideoGame/StreetFighterIII Urien]]
** Ultra Combo/Weapon: [[AttackReflector Aegis Reflector]] (Mirror that reflects projectiles and damages enemies)
*** Weakness: [[spoiler:Mine Sweeper]]
* [[spoiler:[[VideoGame/StreetFighterII Balrog]] (Boxer)]]
** Ultra Combo: [[spoiler:Violent Buffalo ([[OneHitKill OHKO]])]]
*** Weakness: [[spoiler:[[HoistByHisOwnPetard Himself]] (falls into a pit when you lure him enough)]]
* [[spoiler:[[VideoGame/StreetFighterII Vega]] (Claw)]]
** Ultra Combo: [[spoiler:Bloody High Claw]]
*** Weakness: [[spoiler:Lightning Kick]]
* [[spoiler:[[VideoGame/StreetFighterII M. Bison]] (Dictator)]] (FinalBoss)
** Ultra Combo: [[spoiler:Final Psycho Crusher]]
*** Weakness: [[spoiler:Optic Laser (Version 1), Hadoken (Version 2)]]
* [[spoiler:[[VideoGame/StreetFighterII Akuma]]]] ([[TrueFinalBoss Secret Boss]])
** Ultra Combo: [[spoiler:Wrath of the Raging Demon]]
*** Weakness: [[spoiler: Aegis Reflector (reflected Shakunetsu Hadokens, collision with Reflector does 1 damage)]]
* [[spoiler: [[VideoGame/StreetFighterI Sagat]]]] ([[BonusBoss New Challenger]])
** Ultra Combo: [[spoiler:Tiger Destruction]]
*** Weakness: [[spoiler: Hadoken]]
-----

!! ''Street Fighter X Mega Man'' contains examples of the following tropes:

* AbnormalAmmo: Blanka summons watermelons that drop from the sky. When Mega Man obtains his power, it allows him to fire out a watermelon that can be used for different purposes.
* AbsenteeActor: Many of the familiar supporting ''Mega Man'' characters are absent. Even Dr. Wily, Mega Man's arch-nemesis, is missing in this game.
* AdvancingBossOfDoom: [[spoiler:Balrog]] will keep punching towards you, and you have to keep moving right or he'll kill you in one hit. [[spoiler: And then, he [[SugarWiki/FunnyMoments falls into a pit]].]]
* AdvancingWallOfDoom: C. Viper's stage has a laser wall of doom that will kill you in one hit if you don't keep moving forward and destroying the laser barriers.
* AIRoulette: All the bosses (except [[spoiler:Balrog]]) tend to use attacks randomly. This can get annoying at times, especially if Ryu decides to spam his {{invulnerable|Attack}} HurricaneKick.
* AscendedFanFic: Well, technically, this counts as "Ascended Fan ''Game''."
* AscendedMeme: [[spoiler:Enter a code at the pause screen to change ALL OF THE MUSIC IN THE GAME to Guile's theme.[[note]]Pause the game, hold Jump, and press Up, Down, Down, Down.[[/note]] A_Rival even titled the track "Goes With Everything."]]
* AttackReflector: Mega Man acquires one in the Aegis Reflector when he defeats Urien. Rose utilizes one in the form of her Soul Reflect. An enemy in Urien's stage also has this power.
* AWinnerIsYou: See RidingIntoTheSunset.
* BattleInTheRain: The landscape for the final battle against [[spoiler:M. Bison]] is the Australia stage from ''VideoGame/StreetFighterAlpha 2'', which contains heavy rain and thunder in the background. [[spoiler:In version 2, if you see extra rain in the foreground, it means you have successfully met the conditions to fight Sagat.]]
* BeatingADeadPlayer: Bosses will continue to run around and attack even after Mega Man has been defeated.
* BilingualBonus: The wall scrolls in Ryu's stage read "一九八七" (One, Nine, Eight, Seven). 1987 was the release year of the first ''VideoGame/MegaMan1'' game.
* BloodKnight: All the Street Fighters. Why are they attacking Mega Man? Just because they can, but also because they want to fight him before their own anniversary finishes up and they don't want him to relax just yet for his own.
* BombThrowingAnarchists: [[ColonelBadass Rolento]] counts, given his characterization in other games. Mega Man gains the power to ThrowDownTheBomblet after defeating him.
* BoringButPractical: A skilled player can defeat any boss in the game with charged shots from the Mega Buster. Note the word "skilled": although charge shots will do a lot of damage compared to the normal Mega Buster shots or non-weakness weapons, the bosses still present a formidable challenge.
* BootstrappedTheme: {{Averted|Trope}}; while the usual ''Street Fighter'' suspects show up, they're used as they were intended: for the stages. Chiptune artist A_Rival even went a step further and mashed up famous ''Street Fighter'' themes with ''Mega Man'' themes.
** The boss fights use "Volcanic Rim", the theme of ''VideoGame/StreetFighterIV'' -- which has become something of a BootstrappedTheme for the ''Street Fighter'' series as a whole in recent times.
* BossOnlyLevel: [[spoiler:Balrog's]], which is rather unusual for a ''Mega Man'' game.
* BossRush: You'll go through one of these the third of the ending stages, as per ''Mega Man'' tradition. You can get health and ammo pickups by shooting at the balls in the Feng Shui Engine sitting in the main teleporter room.
* ButtMonkey: On the traditional Acquired Weapon screen, Mega Man tests his new abilities on [[VideoGame/StreetFighterAlpha Dan]].
* CallingYourAttacks: Though since the game mimics the NES titles, it just sounds like bleeps. Particularly noticeable against Chun Li.
* CompositeCharacter[=/=]AdaptationDistillation:
** Blanka's Ultra Combo is equal parts Shout of Earth from the ''[[VideoGame/StreetFighterEX EX]]'' series and ''Super Street Fighter IV'' and Tropical Hazard from ''Street Fighter Alpha 3''.
** C. Viper's moveset is mostly her moves from ''Super Street Fighter IV'', including her Burning Dance Ultra, but she also has the Optic Laser from ''[[VideoGame/MarvelVsCapcom3 Ultimate Marvel vs. Capcom 3]]''.
** [[spoiler:Akuma has this three ways: [[VideoGame/StreetFighterAlpha you fight him in a cave with an eight-armed statue]], [[VideoGame/StreetFighterIV his Ultra is the Shin Shun Goku Satsu]], [[VideoGame/SNKVsCapcom and he uses]] [[DeathFromAbove Misogi]] [[VideoGame/CapcomVsSNK2MarkOfTheMillennium to one-hit Bison, and later while fighting you]].]]
* {{Crossover}}: Between the ''Street Fighter'' and ''Mega Man'' series.
* DamnYouMuscleMemory: In most PC games, the escape key goes to the pause menu. In ''Street Fighter X Mega Man'', the escape key ''instantly quits the game.'' In the v2 update, pressing the escape key causes a window to pop up asking if you want to exit the game, circumventing this by a bit.
* DemotedToExtra: Rush doesn't even appear as a power like Rush Coil--he only appears in the [[UnexpectedShmupLevel shoot 'em up segment]] in Rose's stage, and that's it.
* DoppelgangerAttack: [[spoiler:Holding down Attack and Jump during the start screen for 6 seconds or so allows Mega Man to use Sei'ei Enbu (one of [[VideoGame/StreetFighterIII Yang]]'s Super Arts), which creates a clone silhouette that attacks with him.]]
* DynamicEntry: Mega Man gets [[EnergyBall Hadouken'd]] by Ryu in the trailer -- right at the end of the intro from ''Mega Man 2'', no less.
* EasterEgg: Several. It's possible to make Mega Man helmetless [[note]]at the Stage Select screen, place the cursor over Ryu, hold Shoot, and press Right, Right, Right, Left; simply repeat the process to regain Mega Man's helmet[[/note]], [[spoiler:change all of the music to Guile's Theme [[note]]at the pause screen, press Up, Down, Down, Down while holding the Jump button[[/note]]]], and even [[spoiler:obtain the Sei'ei Enbu and an alternate version of the Hadouken fired exactly like the real deal. [[note]]hold down both Shoot and Jump at the title screen for about 5-6 seconds; you'll hear a chime if you did it correctly[[/note]]]]
* ElementalRockPaperScissors: [[spoiler:Ryu > Chun-Li > C. Viper > Dhalsim > Blanka > Rose > Rolento > Urien > Ryu. Chun-Li > Vega (Claw), C. Viper > M. Bison (Dictator), Urien > Akuma]].
** [[spoiler: In version 2, Ryu > Sagat and M. Bison]]
* EyeBeams: C. Viper's Optic Laser.
* FakeDifficulty: The game features a number of sections that pull this off. Enemies will respawn the moment they go off-screen (meaning they can still attack you), you can get locked into going down a hallway filled with one projectile spamming enemy and two enemies that reflect your shots, bosses have mountains of HP...
** In the original release, there was no save function or password system, forcing you to play through the entire game in one sitting. Now, there is a password system in V2.
* FlawlessVictory: You can do this to bosses, and the screen will show "PERFECT!" when you do. Bosses can do this to you as well. [[spoiler:You need at least four Perfects on the first 8 bosses to fight Akuma at the end, and in Version 2 you need 4 of them on the Shadaloo bosses and the rematches in the BossRush stage to fight Sagat.]]
** Note: You don't necessarily have to not get hit to get the "PERFECT!" Just have full energy at the end of the match. You can E-Tank it up and land that last hit to get it.
* GameBreakingBug: Some people have found the game to lag extremely badly on their computers. Specifically, if there isn't an Xbox 360 pad plugged into the computer, then the game runs at half speed. Luckily, they have said there's a patch coming for this.
* GuideDangIt: Even when you know the order of the weapons in advance, you would still be scratching your head at two of the bosses, at least in the original version. To wit: [[spoiler:Rolento is weak against only the Soul Satellites ''that rotate around you'', not the ones that you fire afterwards. As for Urien, he's weak not to the Mine Sweeper ''itself'' but rather the ''splash damage'' from the explosions. Granted, there's some precedent for the latter in other ''Mega Man'' games, but it's still perplexing at first.]]
* HoistByHisOwnPetard: [[spoiler:Ryu's weakness is his own Hadoukens reflected back at him (the same applies for Akuma, but with his Shakunetsu Hadoukens instead). Balrog's Violent Buffalo eventually sends him into a pit.]]
* HurricaneKick:
** [[{{Shotoclone}} As]] [[TropeMakers expected]], Ryu's Tatsumaki Senpuukyaku makes an appearance here as well. While it provides Ryu with [[InvulnerableAttack invulnerability]], Mega Man can also slide underneath it.
** Likewise, Chun-Li has her Spinning Bird Kick, which Mega Man can also slide under.
* IaijutsuPractitioner: One of the mooks in Ryu's stage. You have a very small timeframe where you can actually hit it.
* ImprobableWeaponUser: A number of Blanka's attacks use watermelons as weapons; this serves as a nod to his Tropical Hazard super in ''Street Fighter Alpha 3''. Mega Man gains the Tropical Hazard after beating Blanka, which gives him the ability to spawn watermelons to use as either a weapon or a temporary springboard for a super-jump.
** [[LadyOfBlackMagic Rose]] counts, as she infuses her [[ScarfOfAsskicking stole]] with [[LifeEnergy Soul Power]] to mold it into a versatile and surprisingly deadly weapon.
* KaizoTrap: One of the game's extremely rare energy tanks is found at the end of [[spoiler:Balrog's]] AdvancingBossOfDoom, but you only have a split second to nab it before the [[VictoryPose victory animation]] takes control of Mega Man. At that point, it's far too late to kill yourself to restart the level, and you can't go back for it once the next stage starts.
* KamehameHadoken: Ryu has this in the form of his Shinkuu Hadouken, though in this game, he uses the usual [[EnergyBall ball of]] {{ki|Attacks}} instead of the energy beam associated with ''[[FranchiseCapcomVsWhatever Vs.]]'' series). Mega Man obtains the Hadouken after defeating him, and he can charge it up into the Shinkuu Hadouken.
** By the way: this [[MythologyGag doesn't mark]] [[VideoGame/MegaManX1 the]] [[VideoGame/MegaManXtreme first]] [[VideoGame/MegaManXtreme2 time]] Mega Man has used the Hadouken.
** [[spoiler:By holding down Attack and Jump at the start screen for about 6 seconds, you can let Mega Man learn this early (do the quarter circle forward motion and attack). He even charges it up just like Ryu if you do this.]]
* LimitBreak: Staying true to the spirit of ''Street Fighter'', all of the bosses have their own Super Meter that fills up as they incur damage (similar to the [[ComebackMechanic Revenge Gauge]] in ''IV''). Once the meter fills up, the bosses can unleash Super Combos. Getting killed by the super even results in the signature Yellow and Orange starburst background. [[spoiler:Defeating a boss with the Sei'ei Enbu active also nets you one.]]
* LogicalWeakness:
** [[spoiler: Blanka, being a WildMan from the jungle (whom you fight ''in'' a jungle), probably wouldn't take too well to fire attacks.]]
** [[spoiler: Likewise, the very nude Urien probably doesn't like explosives all that much.]]
** [[spoiler: C. Viper's special attacks are all tech-based, so it makes sense that ''Lightning'' Kick would do her in.]]
* LuckilyMyShieldWillProtectMe: Interestingly enough, both played straight and [[AvertedTrope averted]]. While the Aegis Reflector will reflect most projectiles back at your enemies, the Reflector itself will disappear if your enemy so much as [[ShieldsAreUseless sneezes on it]].
* MilestoneCelebration: The game celebrates both franchises' 25th year, though Capcom released the game at both the end of ''Street Fighter''[='s=] anniversary and the day of ''Mega Man''[='s=] anniversary.
* MythologyGag:
** This isn't the first time Mega Man has faced against [[VideoGame/MarvelVsCapcomClashOfTheSuperheroes Ryu, Chun-Li, ]][[VideoGame/MarvelVsCapcom2 Dhalsim, Dan Hibiki, ]][[spoiler:[[VideoGame/MarvelVsCapcom2 M. Bison and Akuma]]]].
** And the Hadoken was previously used by [[VideoGame/MegaManX another Mega Man incarnation]].
* NintendoHard: But of course. It ''is'' ''Mega Man'', after all. Some examples:
** No password or save system in the initial release. You do get infinite continues, though.
** [[EmergencyEnergyTank E-Tanks]] do not respawn. At all.
* NoFairCheating: Using a cheating device such as Cheat Engine will turn the screen black. You can't undo this without restarting the game.
* OneHitKill: [[spoiler:[[AdvancingBossOfDoom Balrog's]] punches, as well as Akuma's Shun Goku Satsu]], definitely fall under this trope.
* OnlySixFaces: Many of the Street Fighters have their character model based on Mega Man's.
* PainfullySlowProjectile: Ryu's Hadouken and his Metsu Hadouken are extremely slow. His Shakunetsu Hadouken is ''not'', however. Dhalsim's Yoga Catastrophe is also extremely slow, if not slower than Ryu's Metsu Hadouken.
** And of course, Dan's Ultra Combo, Shinkuu Gadouken, makes an appearance when you get the Aegis Reflector.
* PandaingToTheAudience: Chun-Li's stage has pandas on skates and pandas on skateboards as endlessly-respawning enemies. Also counts as a DragonsUpTheYinYang ShoutOut to Yun and Yang of ''VideoGame/StreetFighterIII'', as the pandas look very much like the yin-yang symbol, and the skateboarder has a blue and yellow hat, while the rollerblader has brown spiky hair.
* PlayingWithFire: Dhalsim has his [[BreathWeapon Yoga Flame]] and Yoga Inferno specials. Mega Man gains the latter after beating him.
* PowerCopying: Hey, Capcom couldn't call it a ''Mega Man'' game without this trope.
* PsychoElectricEel: One of the Mooks in Blanka's stage looks like these, a likely nod to Blanka's origins (he was taught how to harness his bio-electricity as a weapon by watching eels).
* RespawningEnemies: Taken UpToEleven in Chun-Li's stage, where the Metool cars and Pandas keep coming in from offscreen endlessly. You can take advantage of this to get lives, though.
* {{Retraux}}: Much like ''VideoGame/MegaMan9'' and ''VideoGame/MegaMan10'', ''[=SFxMM=]'' homages the 8-bit presentation of the earlier ''Mega Man'' titles. Unlike those two games, however, ''[=SFxMM=]'' merely mimics the look, as numerous sprites surpass the limits of NES graphics.
* ReverseShrapnel: Rose's Soul Satellite from ''SSFIV'' makes an appearance here. When she uses the Ultra, she summons two spheres of Soul Power that orbit around her body and deal collision damage. Mega Man gets this move when he defeats her.
* RidingIntoTheSunset: The ending of the game just consists of Ryu and Mega Man walking into it.
* RubberMan: Another staple ability of Dhalsim's makes an appearance here.
* RuleOfCool[=/=]RuleOfFun: Why are Mega Man and the Street Fighters at war? How is Mega Man's Weapon Copy compatible with humans? Where did all the robot mooks come from? Why would the BloodKnight-inclined ''Franchise/StreetFighter'' cast hide behind a bunch of robotic mooks in the first place? Why can [[ThreeLawsCompliant Mega Man]] fire his weapon at humans? These are all valid questions which very likely have a sound and solid reason behind... y'know what? Just shut up and play the game.
* RunOrDie: The fight against Balrog (Boxer). Getting hit by him is a OneHitKill, so the only thing you can do is run away from him [[spoiler: until he falls into a pit]].
* ShieldBearingMook: Three instances.
** The first appears in Ryu's stage (and one in Dhalsim's) and fires out {{sword beam}}s. Its shield will deflect weaker projectiles, but a ChargedAttack is too much for it to handle.
** The second is a Optic-Laser shooting Sniper Joe enemy in C.Viper's stage, whose shield will reflect all projectiles.
** The third is a drone with an energy reflector moving around it, found in Urien's stage. Shooting the Reflector will cause your own projectiles to reflect back to you!
* ShockAndAwe: Blanka counts, of course.
* ShockwaveStomp: [[ClothesMakeTheSuperman C. Viper]]'s Seismic Hammer and Blanka's modified Tropical Hazard fall under this trope.
* ShootTheBullet[=/=]DestructibleProjectiles: Many enemy projectiles are destructible.
* ShoutOut:
** The Tropical Hazard weapon is pretty much the Mega Ball from ''VideoGame/MegaMan8'', except it sticks to gravity.
** The panda enemies in Chun-Li's stage are based off [[VideoGame/StreetFighterIII Yun and Yang]], right down to their clothing and their way of skating. [[note]]For a possible added layer, in ''SSFIV: Arcade Edition'' Chun-Li knows the twins on a personal level and could even be considered their martial arts [[CoolBigSis elder sister]].[[/note]]
** Rolento's pogo makes the same sound as Scrooge's in Capcom's ''VideoGame/DuckTales''.
** [[spoiler:Vega's weakness is the Lightning Kick, which is a nod to ''Anime/StreetFighterIITheAnimatedMovie'', where Chun-Li uses it to send him plummeting through a wall to his death.]]
** The flower enemies in Blanka's stage are obvious ones of the flower enemies in [[VideoGame/MegaMan10 Solar Man's]] stage.
** [[spoiler:Bison]]'s stage is a twofold one. It's a stormy grassland in Australia, a direct recreation of the backdrop for the Ryu vs. Sagat opener of ''Anime/StreetFighterIITheAnimatedMovie'' and the stage it inspired in ''VideoGame/StreetFighterAlpha 2'', but could also be seen as a nod to Bison's stage in ''Alpha 3'', which had a similar atmosphere (despite being set in Thailand instead).
*** [[spoiler:Another layer is added if you fight Sagat in version 2, as the stage was actually his own to begin with.]]
** The music for the Shadaloo stages is called "[[VideoGame/BionicCommando DESCEND TRANSFER]]", referencing another Capcom game.
* SpamAttack: [[KickChick Chun-Li]] uses the Lightning Kick in this game, and Mega Man earns the move for beating her. It's short range compensates for the fact that it bypasses MercyInvincibility.
* SpikesOfDoom: Compared to other ''Mega Man'' games, ''[=SFxMM=]'' goes light on this one. Bonus points for Blanka's stage using Bamboo punji pits instead of the traditional spikes.
* SwordBeam: There's an enemy in Ryu's stage that fires these out.
* TarotMotifs: Rose's stage has enemies based off the Minor Arcana (coins, swords, cups), as well as "The Fool" card as a physical barrier numerous times in the stage. Given that Rose is a fortune teller, this is very apropos.
* TeleportSpam: Rose and Dhalsim use this frequently on you.
* TitleConfusion: You might think this is a CapcomVsWhatever game, along the lines of ''VideoGame/StreetFighterXTekken''. Nope, it's a ''VideoGame/MegaManClassic'' game with ''Franchise/StreetFighter'' characters as bosses. The original title was going to be ''Mega Man X Street Fighter'', but Capcom noticed a [[VideoGame/MegaManX different series uses the same name...]]
* TrainingDummy: Just like he is in ''VideoGame/StreetFighterIV'', Dan is the training dummy that Mega Man practices his newly acquired moves on. He even does his Super Rolling Taunt as his introduction.
* [[spoiler:TrueFinalBoss[=/=]BonusBoss: If you get a Perfect on 4 of the first 8 World Warriors (the BossRush does not count), Akuma will challenge you by interrupting your fight with Bison, killing him with Misogi as "HERE COMES A NEW CHALLENGER!" flashes on the screen.]]
** [[spoiler:In version 2, if you get 4 Perfects in the Shadaloo stages, including the BossRush, Sagat will challenge you before the final battle with Bison. This is indicated by additional rain effects when you enter Bison's stage.]]
* UnexpectedShmupLevel: Rose's stage.
* UpdatedRerelease: ''Street Fighter X Mega Man v.2'' which fixes some bugs, buffs M. Bison, adds a password system similar to the one in ''Mega Man 2'' and adds a brand-new boss: [[spoiler:Sagat]].
* WeaksauceWeakness: [[spoiler:Rose]] is weak against ''watermelons''.
** This is [[FridgeBrilliance perhaps]] a great example of ShownTheirWork. Said individual [[spoiler:[[NotAMorningPerson has low blood pressure]]]]. Watermelons [[spoiler:lower blood pressure, so for someone like Rose, that could possibly lead to full-blown [[http://en.wikipedia.org/wiki/Hypotension hypotension.]]]]