Teenage Mutant Ninja Turtles III: The Manhattan Project Action Replay Codes (USA)
This page contains the Action Replay codes that I have available for Teenage Mutant Ninja Turtles III: The Manhattan Project (USA), a game for the original NES (Nintendo Entertainment System). If you're playing on an emulator, you'll typically be able to put these codes into the program through a built in option. Anyone who is really old school and playing on a physical console will have to purchase a physical Action Replay device to use these codes.
If you don't see the code you want on this page, I recommend you return to my Teenage Mutant Ninja Turtles III: The Manhattan Project Guides Index and choose a different section.
Character Highlighted Modifier Codes
1-Hit Kills Bosses: 0628:00
Almost Invincible: 04FF:14
Some bosses can still damage you (like Leatherhead) when they grab you
Always Clear Stage: 0040:0F
Enable The Hidden Option Menu After Choosing A Turtle: 002E:01
Hidden Option Menu's Level Highlighter Modifier: 002D:??
Infinite Continues: 07B0:05
Infinite Health P1: 04F1:27
Infinite Health P1: 04F1:7F
Infinite Health P2: 04F2:27
Infinite Health P2: 04F2:7F
Infinite Lives P1: 006A:05
Infinite Lives P2: 006B:05
Level Modifier: 0058:??
P1 Quickly Gains Tons of Points
006C:63
006D:63
P2 Quickly Gains Tons of Points
006E:63
006F:63
1-Hit Kills Bosses & 0-Hit Enemies
0626:00
0627:00
0628:00