Type JUMCO (for Deluxe Version) or VHOEZ (for Standard Version) at the Main Menu and then press any of the following cheat keys.

Code	Effect
[CTRL]+[SHIFT]+F7	Win Game.
[CTRL]+[SHIFT]+F8	Lose Game.
[CTRL]+[SHIFT]+F11	Add Credits.
[CTRL]+[SHIFT]+F12	Unlock All Missions.