Pause the game and press Down, L2, Square, R1, Right, L1, Left, Circle.
Pause the game and press Right, Left, R2, R1, Triangle, L1, Circle, X.
Pause the game and press X, Triangle, L1, Up, Down, R2, Left(2). Now all weapons, ammunition for them, and keys for the current level will be available.
Pause the game and press Triangle(2), L2, R2, L2, R2, R1, Square. Now all walls and boundaries will appear on the map for the current stage.
Pause the game and press Triangle(2), L2, R2, L2, R2, R1, Circle. Now all objects including enemies, items, weapons, and secret switches will appear on the map.
Pause the game and press L1, R2, L2, R1, Right, Triangle, X, Right. Now your character may see through one layer of wall or sprites.
Master level:
| Password | |
| 610QNNFT35 | |
| F!R251P1FD | |
| RBB4M6HRST | |
| QWC5CS83QS | |
| NJJ64RFRPM | |
| N1J74MYSPR | |
| 811TMQ8W64 | |
| 7KKNL7D443 | |
| 28RFDDS5YX | |
| C66YZLSGGG | |
| GR85XJVNBD | |
| C33V2DHGHK |
Level 2:
| Password | |
| 7GGLPXL746 | |
| YZGLPX2!56 | |
| XHHSNYB965 | |
| 75NK!VGZZO | |
| C2253RNRML | |
| NT!3JRNDCB | |
| 8LLT8KRV02 |
Level 3:
| Password | |
| !6PQGGJVOZ | |
| WHHTNNPS65 | |
| O1JQYV3N34 | |
| 5MMD72GFZ1 | |
| HK25JRDQNL | |
| S772MKWKCF | |
| 78RB35L1VX | |
| J226DG5PNL |
| Joker Command | 800782D4 ???? |
| Infinite Health | 800AB330 0064 800AB33C 0001 80127C58 0064 |
| Infinite Armor | 800AB334 0064 |
| Infinite Bullets | 800AB3A4 0063 |
| Infinite Shotgun Shells | 800AB3A8 0063 |
| Infinite Plasma | 800AB3AC 0063 |
| Infinite Rockets | 800AB3B0 0063 |
| Have Shotgun | 800AB388 0001 |
| Have Double Barrel-Shotgun | 800AB38C 0001 |
| Have Chain Gun | 800AB390 0001 |
| Have Rocket Launcher | 800AB394 0001 |
| Have Plasma Rifle | 800AB398 0001 |
| Have B.F.G. 9000 | 800AB39C 0001 |
| Have Chainsaw | 800AB3A0 0001 |
| Always Have Red Key | 800AB354 0001 |
| Always Have Blue Key | 800AB358 0001 |
| Always Have Yellow Key | 800AB35C 0001 |
| Mega Rapid Fire | 800AB3F8 0001 |
| Always Have Map | 800AB34C 0001 |
