Cheat mode:
While you are at the title screen, choose the "Options" menu, then go 
to "Cheats". Input any of the following case-sensitive cheat codes to 

activate the indicated cheat effect:


Vulcan and flamethrower - Input "5FINGERDISCOUNT" as a cheat code. 

Scepter and mini-rockets - Input "10E6CUSTOMER" as a cheat code. 

Note: The 2nd character in the cheat code is the ZERO, and the 10th 

character in the code is a capital letter "O".