Various Cheats

Password            Effect 
FREEPLAY            Level Select 
NODIE               Invincibility 
GIMME               All Weapons 
NOSEEUM             Invisibility 
SHORTY              Mini Mode 
IMHUGE              Big Mode 
THDOTEST            Debug Info 

Level Passwords
Boot Camp           BOOTCAMP
Dinner Table        DINNER 
Bridge              OVERPASS 
Refrigerator        COOLER 
Graveyard           NECROPOLIS 
Castle              CITADEL 
Tan Base            MOUSE 
Revenge             ESCAPE 
Desk                ESCRITOIRE 
Bed                 COT 
Plasticville        BLUEBLUES 
Toy Shelf           BUYME 
Cashier             EXPRESS 
Toy Train Town      LITTLEPEOPLE 
Rocket Base         NUKEM 
Pool Table          EIGHTBALL 
Pinball Machine     BLACKKNIGHT