Game Genie Code

Back to the Future II & III - Action Replay Codes [US]

The following are known Action Replay Codes for Back to the Future II & III on Nintendo Entertainment System (NES).

The codes will work with the region specified but may work for other regions as well.
  • Infinite Lives (One’s Digit)
    04C4:09
  • Infinite Lives (Ten’s Digit)
    04C5:09
  • Infinite Pizza (Ten’s Digit)
    04C7:09
  • Infinite Pizza (One’s Digit)
    04C6:09
  • Infinite Radioactive Icon (One’s Digit)
    04C8:09
  • Infinite Radioactive Icon (Ten’s Digit)
    04C9:09
  • Infinite Shots
    008B:62
  • Have All Game 1 Treasures
    00DB:FF
    00DC:FF
    00DD:FF
    00DE:FF
  • Have All Game 2 Treasures
    00DE:FF
    00DF:FF
  • Have All Game 1 Treasures Returned 1
    00E0:FF
    00E1:FF
    00E2:FF
    00E3:FF
  • Have All Game 2 Treasures Returned 2
    00E3 FF
    00E4:FF
  • Invincible
    02C6:FE
  • Infinite 90 Keys Left
    04CB:09
  • Have Remote
    04E4:01
  • Infinite 98 Seeds
    04E5:62
  • Have Time Compass
    04E6:01
  • Infinite Bonus Time
    042B:01
  • Invincibility 3
    03DF:00

Footnotes

  • Enable these codes while in a treasure return room, then exit it to end game phase 1.
  • Enable these codes while in a treasure return room, then exit it to end game phase 2.
  • It will keep you from dying if you walk into a enemy, but if you jump you might get killed anyway. It doesn’t work on spikes.
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