Alien 3

Cheat mode: 
Press A, B, Y, X on controller two during game play. Press A on 
controller one to display a cheat number in the top left corner of the 
screen. To increase the cheat number, press A, B, Y, X, B (or X) on 
controller two, The cheat number corresponds to the following effects: 
1 - Invincibility 
2 - No damage 
3 - Invincibility 
4 - Unlimited weapons 
5 - Unlimited weapons and invincibility 
6 - Unlimited weapons and no damage 
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Level Password 
2 QUESTION 
3 MASTERED 
4 MOTORWAY 
5 CABINETS 
6 SQUIRREL 
End OVERGAME