To get options of the trainer, just press Alt Tab during game, and click   
 on buttons or use shortcuts. Options are:                                  
                                                                            
  F1: Unlimited Credits                                                     
  F2: Skip Level (in Human vs Computer mode).                               
  F3: Skip Level (in puzzle mode).                                          
  F5: Player 1 Win (2 players mode).                                        
  F8: Player 2 Win (2 players mode).                                        
                                                                            
  Note: When you use skip level, press the key 2 times. For example in      
        2 players mode, press 2 times F5 to have the player 1 win.          
        (thanks to the programmers of that game for such terrific code).    
                                                                            
   (Press key [i] in the trainer for others infos)