On the main title screen (the selection screen) type "COKE". When the screen flashed blue you are in the cheat mode. Now use the following keys during play:
'F1'----For triangle | 'F7'------For seeker
'F2'------For drones | 'F8'------For hunter
'F3'--For alienwiper | 'F9'------For shield
'F4'-----For blaster | 'F10'--Invincibility
'F5'-------For laser | 'V'------Slow motion
'F6'---For formation | 'L'--------Add lives
Also on the title screen type any of the following:
"FAST"-----------Increase ship speed
"AUTO"--------------Engages autofire
"TWIN"--Gives you two ships onscreen
"EXIT"---------------Resets computer
"QUIT"---------------Resets computer
"DEMO"--------------Starts game demo
The 'HELP' key--for rapid fire speed