!!Trivia:
* DoingItForTheArt: The little touches in this game rival the ''VideoGame/{{MOTHER}}'' series.
* KeepCirculatingTheTapes: The leaked 0.01 Kurai release (containing the BonusBoss fight with [[spoiler:Shadow Man]]) has been taken down at the request of [=PureSabe=], dooming it to this fate. Subverted when it became official in the 0.02 release, at which point it was rereleased.
* WhatCouldHaveBeen: The [[http://www.youtube.com/watch?v=iV6xsgUseeM Skull Amulet originally cursed Hell Wheel]] if you got it by defeating Skull Man with the Recycle Inhaler, but now it protects you from fatal damage from enemies as long as you're above 1 HP.
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!!Music used:
* [[http://www.youtube.com/watch?v=Jro5CmmL-1M Title]]: [[http://www.youtube.com/watch?v=h8WZg2pGZhQ Unused Track]] from ''VideoGame/MegaManV (GB)''
* [[http://www.youtube.com/watch?v=BxOl2Au6cO8 Stage Select]]: [[http://www.youtube.com/watch?v=P9vX-HvwKJ0 Ripple Star Map]] from ''VideoGame/Kirby64TheCrystalShards''
* [[http://www.youtube.com/watch?v=VNjza4E38bI Stage Start]]: [[http://www.youtube.com/watch?v=15LCnkCORjc Stage Start]] (0:09 - 0:12) from ''VideoGame/AtlantisNoNazo''
* [[http://www.youtube.com/watch?v=v3itSyr1-d4 Bright Man]]: [[http://www.youtube.com/watch?v=EUSxabS5_qM Dream Chaser]] from ''VideoGame/{{F-Zero}} X''
* [[http://www.youtube.com/watch?v=r4s3SyAMi5k Toad Man]]: [[http://www.youtube.com/watch?v=T5lL9_jGX78 Overworld]] from ''VideoGame/KaeruNoTameNiKaneWaNaru / VideoGame/ForTheFrogTheBellTolls''
* [[http://www.youtube.com/watch?v=ceqPoM5v4H4& Ring Man]]: [[http://www.youtube.com/watch?v=cJ74_iEqCkE Cheese Land]] from ''VideoGame/MarioKart Super Circuit''
* [[http://www.youtube.com/watch?v=iKrD92AMA0o Drill Man]]: [[http://www.youtube.com/watch?v=xUof7aXld5M Main Theme]] from ''Challenger''
* [[http://www.youtube.com/watch?v=FqLiEOsQoEE Pharaoh Man]]: [[http://www.youtube.com/watch?v=C36NjwzdiSg Fillmore]] from ''VideoGame/ActRaiser''
* [[http://www.youtube.com/watch?v=ohJ6-D207Fk Dive Man]]: [[http://www.youtube.com/watch?v=3rOvCGm1OHM Stage 3]] from ''VideoGame/{{Mappy}} Kids''
* [[http://www.youtube.com/watch?v=0FhP2vUza7o Skull Man]]: [[http://www.youtube.com/watch?v=3By8Fh5K98U Cloud Island]] from ''VideoGame/AdventureIsland II''
* [[http://www.youtube.com/watch?v=WH5xwsyq6So Dust Man]]: [[http://www.youtube.com/watch?v=JxXPe1YH8Zg Underworld Map]] from ''Anime/{{Doraemon}}: Giga Zombie no Gyakushu / Revenge of the Giga Zombie''
* [[http://www.youtube.com/watch?v=HIul0YaKnNs Boss]]: [[https://www.youtube.com/watch?v=L2BvzGANTyQ Off to War]] from ''[[VideoGame/FireEmblemAkaneia Fire Emblem: Monshou no Nazo / Mystery of the Emblem]]''
* [[http://www.youtube.com/watch?v=fm8zGYwK3mg Stage Clear]]: [[http://www.youtube.com/watch?v=pJ63z7FeWdc Evolution Complete]] from ''VideoGame/PokemonRedAndBlue''
* [[http://www.youtube.com/watch?v=Ezhgdi9jIAY Get Weapon]]: [[http://www.youtube.com/watch?v=ZRufIUpm4kE Isamashii]] from ''RPGMaker GB''
* [[http://www.youtube.com/watch?v=5XdyCD-IDcE Secret Boss]]: [[http://www.youtube.com/watch?v=4-Mf3o7oVQ4 Sunstar]] from ''VideoGame/MegaMan 5 (GB)''
* [[http://www.youtube.com/watch?v=jgcuw9TCBb8 Wire/Balloon Adaptor Obtained]]: [[http://www.youtube.com/watch?v=MdEFCzMNPa0 Item Acquired]] from ''[[VideoGame/{{Metroid}} Super Metroid]]'' [[RecurringRiff and beyond]] [[labelnote:*]]Technically, it debuted in [[http://www.youtube.com/watch?v=KUtG6iwT3_M the Famicom version (0:56)]] [[OlderThanTheyThink of the original Metroid.]][[/labelnote]]
* [[ Game Over]]: [[ Tada 10]] from ''Famicom Mukashi Banashi: Shin Onigashima''.
* [[ Password]]: [[ Utsagi Office]] from ''Famicmo Tantei Club: Kieta Kōkeisha''
* [[http://www.youtube.com/watch?v=NNhFDdqf5M8 Cossack 1]]: [[http://www.youtube.com/watch?v=VW4jEMIpuYg Intro Stage]] from ''Ninja Cop Saizou''
* [[http://www.youtube.com/watch?v=yCJi6Iv0CH8 Cossack 2]]: [[http://www.youtube.com/watch?v=NY9okTTABus Resistance Base]] from ''VideoGame/PrincessTomatoInTheSaladKingdom''
* [[http://www.youtube.com/watch?v=myYmztZ0v14 Cossack 3]]: [[http://www.youtube.com/watch?v=jhijdzH5ghA Sewer Stages]] from ''Ninja Cop Saizou''
* [[http://www.youtube.com/watch?v=DDOc8MpW6lQ Cossack 4]]: [[http://www.youtube.com/watch?v=iYCzoQqSFfA Castle]] from ''VideoGame/PrincessTomatoInTheSaladKingdom''
* [[http://www.youtube.com/watch?v=Ao2X-yaHn1Y Cossack Boss]]: [[http://www.youtube.com/watch?v=ihyBqhj2Jp0 Ogura]] from ''[[VideoGame/TheLegendaryStarfy Densetsu no Stafy 3]]''
* [[http://www.youtube.com/watch?v=-CAn-RMhC24 Wily 1]]: [[http://www.youtube.com/watch?v=bWNX8jVySB8 Okhotsk Vanishes]] from ''Hokkaido Serial Murders: Okhotsk Vanishes''
* [[http://www.youtube.com/watch?v=yrimxaKxcpM Wily 2]]: [[http://www.youtube.com/watch?v=WfJAX-1vKtY Overheat]] from ''VideoGame/{{Gradius}} II''
* [[http://www.youtube.com/watch?v=7WRG9OVkNu8 Wily Stage 3]]: [[http://www.youtube.com/watch?v=dE00u-GUYnw Pursuit]] from ''Hokkaido Serial Murders: Okhotsk Vanishes''
* [[http://www.youtube.com/watch?v=h0qNKp0qq88 Wily Boss]]: [[http://www.youtube.com/watch?v=AOqWqcAWrKM Evil]] from ''[[TheLegendaryStarfy Densetsu no Stafy 3]]''
* [[http://www.youtube.com/watch?v=J-BI8jZF3eQ Wily Machine]]: [[http://www.youtube.com/watch?v=gGrwRBZ5Wyw Battle 3 (Dark King Battle)]] from ''VideoGame/FinalFantasyMysticQuest''
* [[http://www.youtube.com/watch?v=Oad6Qp_SOyA Chimerabot #1 (Eleccut Man)]]: [[http://www.youtube.com/watch?v=pFbvX8iOC4c Boss Theme]][[note]]with intro from Mega Man 3's boss theme[[/note]] from ''VideoGame/MegaMan1''
* [[http://www.youtube.com/watch?v=FDZXGVPdOOU Chimerabot #2 (Quickwood Man)]]: [[http://www.youtube.com/watch?v=0oMm3A6On2Y Boss Theme]][[note]]with intro from Mega Man 3's boss theme[[/note]] from ''VideoGame/MegaMan2''
* [[http://www.youtube.com/watch?v=a-fPnYU0qu0 Chimerabot #3 (Geminineedle Man)]]: [[http://www.youtube.com/watch?v=a-fPnYU0qu0 Boss Theme]] from ''VideoGame/MegaMan3''
* [[http://www.youtube.com/watch?v=iBTA8Ob_tFQ Wily Capsule]]: [[http://www.youtube.com/watch?v=DdWPzCrqRn0 Final Stage/Ending]] from ''Anime/{{Doraemon}}'' for the GameBoy.
* [[http://www.youtube.com/watch?v=O0lgCcz0zts Wily Stage 4]][[note]]post Wily Capsule[[/note]]: [[http://www.youtube.com/watch?v=u5PmTtSs4Xo Something Ghostly]] from ''VideoGame/{{Gradius}} II''
* [[spoiler:[[http://www.youtube.com/watch?v=oiJAdy5SGxY Wily Castle Escape]]]]: [[http://www.youtube.com/watch?v=thahQTUE7WU Halberd Escape]] from ''VideoGame/KirbySuperStar''
* [[http://www.youtube.com/watch?v=vouSJoisK2c Game Clear]]: [[http://www.youtube.com/watch?v=uNgjrlEJAXA Kirby's Triumphant Return]] from ''VideoGame/KirbySuperStar''
* [[ Mega Man 4 Original Staff]]: [[http://www.youtube.com/watch?v=NaMJt70oIRI Main Menu]] from ''Wicked 18/Devil's Course''
* [[http://www.youtube.com/watch?v=IlX3LQApyU0 Robot Master Demo]]: [[http://www.youtube.com/watch?v=JiFiC7V1ifI Main Theme]] from the ''Franchise/FireEmblem'' franchise
* [[ Staff Roll]]: {{Medley}} of the [[http://www.youtube.com/watch?v=gm7xN_0kin0 credits]] from ''VideoGame/KirbySuperStar'', ''VideoGame/{{Kirby}}'s [[http://www.youtube.com/watch?v=J9Sb8xwEaJw Block Ball]]'', and ''[[http://www.youtube.com/watch?v=uvDANcQPdc0 Kirby's Dream Course]]''.
* [[ Result]]: [[http://www.youtube.com/watch?v=7-cDDQ0uZtw Unused Boss Theme]] from ''VideoGame/MegaManV'' (GB)
* [[ Special Mode]]: [[http://www.youtube.com/watch?v=PUrsVXX77Uo Stage Intro]] from the Super Famicom port of ''Lord Monarch''.
* [[https://www.youtube.com/watch?v=Q4kyZYnwDqw The Mechanical Arena]]: [[https://www.youtube.com/watch?v=3OSi8yD6LX0 Illusion]] from ''VideoGame/FZero Climax''
* [[ The Final Challenge in the TRUE Arena]]: [[https://www.youtube.com/watch?v=JJM8qR8KKYM battle theme]] from ''VideoGame/FinalFantasyV''.
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