Interpose
   By:  Webfoot Technologies
   By:  Interpose<
   Release date: 

   The codes.

   Press P to pause the game, then press
 ENTER, enter the code
 (you have only three seconds) and press ENTER again.

 1501   Add money.
 ARGH   Automatically shoot.
 FISK   Add shields.
 TRAN   Add life.