Cheat mode:
 Type braindead at the main menu to enable cheat mode. 
 Then, press one of the following keys at the indicated 
 screen to activate the corresponding cheat function.
 
 Effect                  Screen            Key  
 Detonator(smart bomb)  - Platform levels - D 
 Full health           - Platform levels - H 
 Super shield          - Platform levels - I 
 Change weapon         - Platform levels - <1 - 5> 
 Extra life            - Any             - [Keypad Plus]