This hack lets you go helmetless in Mega Man 1, similar to the easter egg in Rockman 4-6 Complete Works.
The first three Rockman Complete Works games didn't have the helmetless easter egg, but with this hack you can show off your hair's flair in Mega Man 1.
Apply the patch to an unmodified "Mega Man (USA).nes" rom.
Thanks to Mister Mike from TSR for ripping the MM1 sprites, and to Kapus & Lily for all the Mega Man Marathon races.
Database match: Mega Man (USA)
Database: No-Intro: Nintendo Entertainment System (v. 20210216-231042)
File SHA-1: 51A9FE7B5CB82833FC416E0F29B965495D9CE49A
File CRC32: CA2AB7E2
ROM SHA-1: 6047E52929DFE8ED4708D325766CCB8D3D583C7D
ROM CRC32: 6EE4BB0A