Here is a complete level hack for Rockman 6. All the levels have been changed as well as some graphical changes as well. This patch is intended for Rockman 6. If you plan on applying to a Mega Man 6 ROM, please be aware of risks.
Rockman 6 - Shijou Saidai no Tatakai!! (Japan).nes - NOINTRO
CRC32: AB1D7979
MD5: 25638FAD36C424708A5BB23C3EEDC28A
SHA-1: 316BEA6B2AEF7E5ECDE995EAB4AD99DB78F85C34
SHA-256: C8C3877C3D9DCFC793ADB6CF9B9D46CC6610305681CC68D04937EE0F835AFBD1