🎮 Play Mega Man 4 (USA) (Rev A) Online (NES)

Mega Man 4 is a 1992 action-platformer developed by Capcom for the NES. Following the events of the previous games, the Blue Bomber must face a new threat: Dr. Cossack and his eight Robot Masters who intend to cause global chaos. This pivotal entry introduces the Mega Buster, allowing you to charge your arm cannon for a more powerful blast that fundamentally changes how you approach combat.

How to Play

Navigate through eight distinct stages, defeat the Robot Masters, and acquire their unique weapons. In the browser emulator, use the Arrow Keys to move, X to jump, and Z to shoot. Hold Z to charge the Mega Buster before releasing. Press Enter to pause and access your weapon inventory, and Shift for Select.

Tips

• Defeat Toad Man first; his Rain Flush weapon is highly effective against Bright Man and damages all enemies on screen.
• Take advantage of Eddie, the new support robot who appears in specific rooms to drop random helpful items like health or weapon energy.
• The fully charged Mega Buster deals significant damage and is a reliable alternative against bosses if you haven't acquired their specific weakness.