Cheats:
 Type gubble2cheats at the starting menu. A sound 
 will confirm correct code entry. Press one of the 
 following keys at the indicated screen to activate 
 the cheat function. 
 Note: Enabling cheats will remove scoring for the 
 current level. 
 
 Effect                Screen                    Key  
 Delete all blocks 
 and barriers         Map                        [F3]
  
 Level skip           Standing beside coin with 
                      level name                 [Page Up]
   
 Previous level       Standing beside coin with 
                      level name                 [Page Down] 
 
 Advance ten levels   Standing beside coin with 
                      level name                 [Home] 
 
 Return ten levels    Standing beside coin with 
                      level name                 [End] 
 
 Toggle invincibility Game play                  [F8] 
 
 Complete current 
 level                Game play                  [F9] 
 
 Faster game          Game play                  [Plus]