Here is a full level hack for Rockman 2 which changes all the level layouts in the game. Also all the stage graphics have been edited, enemy AI has been altered, and the bosses have been redrawn. Included is an EASY and NORMAL version of the patch.
Rockman 2 - Dr. Wily no Nazo (Japan).nes - NOINTRO
CRC32: 30B91650
MD5: 055FB8DC626FB1FBADC0A193010A3E3F
SHA-1: FB51875D1FF4B0DEEE97E967E6434FF514F3C2F2
SHA-256: DEB88223311ACA8CA566B99D4063CA29D389D939FEE455F83AFAEC97C6F0A5D1