Play Mega Man 4 (NES) Online

Console NES Genre ActionPlatformerShooter Players
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Controls

Click the game first to enable controls.

Player 1

WASD
Move
K
Jump
J
Attack
Enter
Start

Emulator

Q
Fast Forward
E
Rewind
4
Slow Motion
1
Quick Save State
2
Quick Load State
3
Change State Slot
Gameplay screenshot of Mega Man 4 for NES

Overview and Gameplay

A new crisis begins when Dr. Cossack sends powerful Robot Masters to challenge Mega Man, forcing a journey through eight nonlinear stages filled with platforming hazards and enemy fire. Defeating each boss grants a unique weapon that can be used across other stages, shaping how each level is approached.

The chargeable Mega Buster introduces stronger shots built by holding fire, while returning support tools like Rush expand movement options across difficult terrain. After clearing the Robot Masters, the adventure continues through fortress stages that escalate challenge and enemy variety.

Controls And Mechanics

  • Jumping and movement through side scrolling platform stages
  • Chargeable Mega Buster for stronger attacks
  • Sliding to avoid attacks and pass tight spaces
  • Special weapons gained from defeated Robot Masters
  • Rush support functions for mobility across stages
  • Stage selection and weapon management between levels

Version Notes

This release represents the USA revision 1 program update, refining earlier code behavior and ensuring more stable stage interactions compared to the initial revision.

Release And Credits

  • Release Year: 1992
  • Developer: Capcom
  • Original Platform: NES / Famicom
  • Alternate Title: Rockman 4: Aratanaru Yabou!!
Version
megaman-iv_usa_prg1_verified.nes
Status
Playable in browser
Updated
June 20, 2026

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