[[quoteright:256:http://static.tvtropes.org/pmwiki/pub/images/Rockman_No_Constancy_title_4068.png]]
'''Rockman No Constancy''' is a [[GameMod ROM hack]] of ''[[VideoGame/MegaMan2 Rockman 2]]'' by Japanese ROM hacker IKA. Its features are [[SceneryPorn awesome graphics]], [[CrowningMusicOfAwesome great music]], and [[NintendoHard insane difficulty]], making it one of the most well-known ROM hacks out there.

Comes in Normal ([[ExactlyWhatItSaysOnTheTin normal difficulty for Mega Man]]) and Hard (no MercyInvincibility; [[PlatformHell have fun]]) versions.
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!!Tropes present in this game:
* AdvancingBossOfDoom: The Mecha Dragon chase becomes an [[NintendoHard insanely fast]] version of this.
* AnIcePerson: Wood Man. Yes, seriously.
* BlackoutBasement: One section of Flash Man's stage. [[NintendoHard Particularly infuriating]] in that it ends up hiding several blocks.
* BlowYouAway: Air Man.
* BossRush: As per series tradition, though with slippery floor.
* BullfightBoss: Heat Man.
* ChekhovsGun: Early on in Flash Man's stage, you come across a boss gate that's blocked off. [[FridgeBrilliance That same gate leads to the final boss much later on]].
* ColorCodedForYourConvenience: Mega Man's default color in the Hard version is green, which removes the MercyInvincibility you normally would get when hit.
* DummiedOut: [[http://www.youtube.com/watch?v=0y4rocwZvVU This song]] was used in the first build of the game for Wily Stages 3 & 4, and subsequently cut. It happens to be a 8-bit carbon copy of Akira's battle theme, from Super Famicon's [[LiveALive Live a Live]].
* EternalEngine: Metal Man's stage and most Wily stages.
* FloatingContinent: Air Man's stage seems to be this.
* GustyGlade: Air Man's stage.
* [[HarpoonGun Harpoon]] ArmCannon: Bubble Man.
* KillItWithFire: Delay Flame (Quick Man's weapon) and Proto Charge (Heat Man's).
* KillItWithIce: Ice Circle (Wood Man's weapon).
* LethalLavaLand: Downplayed with Metal Man's stage, which has molten metal that [[OneHItKill one-hit kills]] you.
* MercyInvincibility: ''Averted'' in the Hard version. This tends to turn NintendoHard sections into pure PlatformHell.
* MirrorWorld: Wily 6 is this to Flash Man's stage.
* NintendoHard: '''Oh yes'''.
* OneHitKill: Za Warudo towards Clash Man.
* PlayingWithFire: [[CaptainObvious Heat Man]] and Quick Man.
* PowerFist: Again, Heat Man seems to have one. It [[PowerGlows glows]] as well.
* RemixedLevel: Again, Wily 6 is this to Flash Man's stage.
* SceneryPorn: Among others, Air Man's level, with its sunset views and cool-looking palace.
* ShiftingSandLand: Heat Man's stage.
* SlippySlideyIceWorld: Wood Man's stage.
* ShoutOut:
** Flash Man's weapon is named [[Manga/JoJosBizarreAdventure Za]] [[MemeticMutation Warudo]].
** Air Man's portrait on the stage select screen is taken from ''I Can't Defeat Air Man''.
** Several stage graphics are ripped from other games:
*** Flash Man's is from ''YoshisIsland''.
*** Air Man's is from ''{{Kirby}}'s Adventure''.
*** Quick Man's is from ''VideoGame/MegaManX2''.
** Not to mention about the BGM playing throughout the stages. Just like the DummiedOut example above, all musics are remastered in 8-bit:
*** Metal Man, Heat Man, and Flash Man get the series's home feeling, by taking their stage themes from, respectively, ''X2'', ''VideoGame/MegaManZero 2'', and ''Zero 4'''s intro stages.
*** Air Man's is from the Famicon RPG ''Valkyrie no Bouken''.
*** Bubble Man's theme is ''{{The King of Fighters}}'' '96's. [[SNKBoss Goenitz's, of all people...!]]
*** And speaking of King of Fighters, Crash Man's theme is taken from the series's Japanese spinoff, ''[[VideoGame/SNKGalsFighters Gals Fighters]]'''s Arch of Triumph.
*** Quick Man takes his stage theme from ''{{Namco x Capcom}}'''s opening theme, ''[[http://www.youtube.com/watch?v=NPfkyEoV7OU Brave New World / Subarashiki Shin Sekai]]''.
*** Wood Man manages to get his theme from even more obscure sources: the ''Little Chaser'' game from the japanese ShootEmUp series, ''Dezaemon''.
*** The first and second Wily stages, however, used ''VideoGame/SuperRobotWarsAdvance'''s theme from Vindel / Zweizergain, the game's final boss. That's right, [[ThatOneLevel That One]] [[TheVeryDefinitelyFinalDungeon Final Stage]] takes inspiration in [[ThatOneBoss That One]] [[FinalBoss Final Boss]]! Goes unsaid that SRW fans playing Rockman no Constancy [[OhCrap get an ominous feeling once that tune started playing right at the final set of stages]]...
** The Mecha Dragon has [[Anime/TengenToppaGurrenLagann Kamina shades]] now.
* SuperMode: [[spoiler:''Wily'', of all people, has one in the final boss battle. Or at least his hologram does.]]
* TankGoodness: The Wily Tank, [[OverlyLongGag as in the original.]]
* TheLostWoods: Flash Man's stage, as well as Wily 6 (a PaletteSwap of the former).
* TimeStandsStill: Flash Man, like the original.
** And of course Za Warudo/The World, his weapon.
* TitleThemeDrop: Done in Wily Stage 6. [[CrowningMusicOfAwesome And it is awesome.]]
* UnderTheSea: Wily stages 1 (at least the first part) and 4.
* UnderwaterBossBattle: [[CaptainObvious Bubble Man]]. Also, the Buebeam Room.
* UnderwaterRuins: Bubble Man's stage.
* WeaksauceWeakness: [[DubNameChange Crash/Clash]] Man is [[OneHitKill killed in one hit]] by Za Warudo (a weapon that isn't even offensive).
** Do note, however, that Za Warudo now damages ''all'' bosses in this game (albeit to varying degrees).
* WordSaladTitle