Here are some cheats and tips for the game G.I. Joe.
Level Quest 1 Quest 2 Quest 3
1 (None) ZND39N5XF 3R69N5XGG
2 6369N5XG6 PXHNDXGZ8 BHNJHVD8H
3 3ZD39R5X9 3NRDZN5X1 JHR0HVD8H
4 9ZD3ZN0XF 5XHPPXNZD 5DS5ZNGZD
5 5369N5VG2 VVNBBJV83 NGZ9X99XF
6 5ZD3NN5X5 DVNBB8V8H DHRX80V83
End DRR3JOV8C DRR3JOV8C DRR3JOV8C