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 LITTLEPEOPLE
Rocket Base NUKEM
Pool Table EIGHTBALL
Pinball BLACKKNIGHT

A friend of mine have me these codes.

Code first -- What code does, second.

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