Play Rockman 2 - Dr. Wily no Nazo (Japan) [Hack by DHI v1.0] (~Rockman Exhaust) Online

Game Overview

Rockman 2 (or Mega Man 2 if you grew up outside Japan) is one of those NES classics that still holds up. You jump, shoot, and steal robot master weapons—just like the first game, but everything feels tighter. The music slaps, the levels are punishing but fair, and that first time you beat Air Man only to realize you just unlocked his tornado weapon? Pure satisfaction.

This particular version’s a hack called "Rockman Exhaust," which tweaks some mechanics—boss patterns change, weapons behave differently, and yeah, it’s harder. If you’ve played the original to death, it’s a fun way to get wrecked all over again. Still has those iconic Robot Master stages, though now you might actually need those E-tanks.