Tyrian

Enter the following codes at the Main Menu:
DESTRUCT    Scorched Earth Game
ENEMY       Captured Enemy U-Fighter
STEALTH     Ninja Fighter
STORMWIND   The Elemental Fighter
TECHNO      Experimental Fighter
UNKNOWN     TX SilverCloud
WEIRD       Carrot Food Fighter
NORTSHIPZ   Nort-Ship Z


Enter the following codes during play:
Invincible           F2+F3+F6
Level Skip           F2+F6+F7
Destruction Mode     F2+F3+F5
Extra Money          F2+F3+F10
Gamma correction     F11
Super Turbo mode     BACKSPACE and 1
Blue ship            TAB and 1
Red ship             Tab and 2
Souped-up red ship   Tab and 4
Normal ship          Tab and 0