This game was officially released as freeware in 2004.
NOTE: This game can be played directly in Windows using a source port (see the links section below).
Use these passwords to get different ships:
ENEMY: Captured U-Fighter
STEALTH: Ninja Star
STORMWIND: Stormwind - The Elemental
TECHNO: Experimental PQZ
UNKNOWN TX: SilverCloud
WEIRD: Foodship Nine
You can also enter DESTRUCT to access a secret bonus game.
Description by VGTips