Start game, goto console [F1] and enter the following cheats. Then, hold down [F4] and press [ENTER] (hit [F1] again to exit console):

Code - Result
VAMONOS - Skip Level
MRFURIOSO - God Mode
VIDA - Restore Energy
MAGIA - Restore Magic
ITEM X - Get Item X


These codes do not require [F4] to be pressed:

Code - Result
GRID - Toggle Block Grid
BBOX - Toggle Object Properties
DACTORS - Toggle Actor Properties
VIDMEM - Show Video Memory
SETFPS - Sets FPS
CLS - Clear Console