Cheat Mode
| Level | Password |
| 1-2 | K8T87 NL46K 6T8K |
| 1-3 | K8T87 NL46K T7R3 |
| 1-4 | K8T87 NL46K 4V2T |
| 2-1 | K8T87 NL46K 7NR1 |
| 2-2 | K8977 N5408 VR0S |
| 2-3 | K8T77 NL42R 2T74 |
| 2-4 | K8T77 NL42R 39KV |
| 3-1 | K8T77 NL42R KV41 |
| 3-2 | 55987 L5452 V052 |
| 3-3 | 5K987 V5452 3678 |
| 3-4 | 5K987 V5452 LV15 |
| 4-1 | 5K987 V5452 3K21 |
| 4-2 | 5K987 V5452 9VL2 |
| 4-3 | KK987 V2457 TV7L |
| 4-4 | KK987 V2457 5RTV |
| 5-1 | KK987 V245T K69L |
| 5-2 | KK987 V245T 759T |
| 5-3 | KL987 NT465 364V |
| 5-4 | KL987 NT465 TK8N |
| Bonus | KN287 9526K 95RN |
Lots of weapons and ammunition
Enter "KL987 NT465 0001" as a password at the inventory selection screen.
Full armor, doubled ammunition, all alien and normal version weapons
Enter "KN28F 9526K" as a password at the inventory selection screen.