Action Replay Codes [US]

The following are known Action Replay Codes for Metroid II: Return of Samus on Nintendo Game Boy / Color (GB / GBC). These codes were also known as GameShark Codes and in most cases will work on both devices.

Device Compatibility: Action Replay & GameShark

Infinite Missiles
013953d0

Invincibility
018784d0

Game Genie Codes

The following are known Game Genie Codes for Metroid II: Return of Samus on Nintendo Game Boy.

• 00F-36B-E6E
  Infinite missiles
• 80F-6DD-7F6
  Infinite energy