Rock Man V, but you play as one of the game's fortress bosses, miniaturized! There may not be any notable changes to the gameplay, but this hack offers a nice coat of paint for the player character in case you're tired of the Blue Bomber.
Database match: Rockman 5 - Blues no Wana! (Japan)
Database: No-Intro: Nintendo Entertainment System (v. 20210216-231042)
File SHA-1: 0FC06CE52BBB65F6019E2FA3553A9C1FC60CC201
File CRC32: 9D01E44C
ROM SHA-1: 36A89DA160D9760F78B891E332F7DCABB6E90E70
ROM CRC32: FDDF2135