New weapons
 
 At the weapon options screen, press [X + Square] eight times. Then, banana
 bombs, sheep bombs and a minigun will become available. Additionally, the Ninja
 Rope will be extra bouncy.
 
 Infinite banana bombs
 
 At the weapon options screen, press Down, Right, X, Square(2), X, Square(2), X,
 Square(2).
 
 One hit point worms
 
 Set the move timer and round time to unlimited. Then at the weapon options
 screen, press [X + Square] eight times. Now while playing a game, pause and
 select extra time. All worms will be reduced to one hit point. This is
 particularly useful it is your turn with one team left, and an airstrike is
 available.
 
 Boxing match
 
 Start a fire punch, quickly hold Square press R1, L1, Circle. Then, a boxing
 match featuring one worm from each team will begin. Now defeat your opponent
 using just punches and dragonballs. The normal game will resume after one worm
 is defeated.
 
 Bonus levels
 
 Enter one of the following passwords to play the corresponding bonus level:
 
                      
  Level                  
  Password 
                      
  Hell                   
  Hades/666
                      
  Woods                  
  Forest   
                      
  Candyland              
  Candy    
                      
  Junkyard               
  Junk     
                      
  Martian                
  Mars     
                      
  H. R. Giger-type Alien 
  Alien    
                      
  Polar                  
  Artic    
                      
  Game Shark Codez:
 
           
  Infinite Energy P1 Worm 1               
  8014A54C 0064
           
  Infinite Energy P2 Worm 1               
  8014A7FC 0064
           
  Infinite Energy P1 Worm 2               
  8014A5F8 0064
           
  Infinite Energy P2 Worm 2               
  8014A8A8 0064
           
  Infinite Energy P1 Worm 3               
  8014A6A4 0064
           
  Infinite Energy P2 Worm 3               
  8014A954 0064
           
  Infinite Energy P1 Worm 4               
  8014A750 0064
           
  Infinite Energy P2 Worm 4               
  8014AA00 0064
           
  Exploding Rusty                         
  8014A7B2 0002
           
  Infinite Turn Timer                     
  8014B7FC 0E11
           
  Infinite Teleport P1 (All Worms)        
  8014B1CC 0002
           
  Infinite Teleport P2 (All Worms)        
  8014B220 0002
           
  Infinite Airstrikes P1 (All Worms)      
  8014B1C8 0002
           
  Infinite Airstrikes P2 (All Worms)      
  8014B21C 0002
           
  Infinite Sheep Bombs P1 (All Worms)     
  8014B1EC 0001
           
  Infinite Sheep Bombs P2 (All Worms)     
  8014B240 0001
           
  Infinite Dynamite P1 (All Worms)        
  8014B1C0 0001
           
  Infinite Dynamite P2 (All Worms)        
  8014B214 0001
           
  Infinite Homing Missiles P1 (All Worms) 
  8014B1A4 0002
           
  Infinite Homing Missiles P2 (All Worms) 
  8014B1F8 0002
           
  Infinite Cluster Bombs P1 (All Worms)   
  8014B1AC 0005
           
  Infinite Cluster Bombs P2 (All Worms)   
  8014B200 0005
           
  Infinite Mines P1 (All Worms)           
  8014B1C4 0002
           
  Infinite Mines P2 (All Worms)           
  8014B218 0002
           
  Infinite Girders P1 (All Worms)         
  8014B1E0 0003
           
  Infinite Girders P2 (All Worms)         
  8014B234 0003
           
  Always Your Turn [Note 1]               
  D0079EB4 0002
  8014B1EC 0001
           
  Switch Turns [Note 2]                   
  D0079EB4 0008
  8014B1EC 0000
           
  Random Movie Player [Note 3]            
  D0079EB4 0100
  8007A074 0001
           
 Note 1: As long as you hold R2 it will always be your turn.
 
 Note 2: Press R1 to switch between turns.
 
 Note 3: At the title screen, press Select to play random FMV sequences in the
 game.