Alien Breed
Enter the cheats during the game| CHEAT | Description |
| ALIEN1C390704 | Unlimited lives for Player 1 |
| ALIEN1C360804 | Unlimited keys for Player 1 |
| ALIEN1C370E2F | Unlimited ammo for Player 1 |
| ALIEN1C360A40 | Unlimited energy for Player 1 |
| ALIEN1C390D99 | Unlimited money for Player 1 |
The level passwords
| LEVEL | Password |
| 2 | AAJIHGDDC |
| 3 | CGGHDGGDG |
| 4 | HDICICCII |
| 5 | IDHEHDGCC |
| 6 | IJIIDIHEC |
| 7 | CFDEFEFJ |
| 8 | JIIJIIIIC |
| 9 | AAAABAAAA |
| 10 | CCGDGBBBB |
| 11 | HHIAAAJJIG |
| 12 | GGDDJJHFD |
| 13 | JIECBFGFF |
| 14 | HGGEDDCCD |
| 15 | HHHGFGDCC |
| 16 | IHHDCHGHFF |