Code Breaker GBA

• Obtain a Code Breaker GBA. This device will enable you to unlock every character and quickly level each up to level 100.
  
  

Unlocking Gohan

• Enter the code "83000EB0 0043" to unlock Gohan, followed by the code "83000EAE 05F5" to automatically level him up to 100.
  
  

Unlocking Piccolo

• Enter the code "83000ECC 0043" to unlock Piccolo. To level him up to 50, input the code "83000ECA 05F5." Unlike Gohan, Piccolo's max level is level 50.
  
  

Unlocking Vegeta

• Input the code "83000EE8 0043" to unlock Vegeta. Enter the code "83000EE6 05F5" to level him up to level 50, Vegeta's maximum.
  
  

Unlocking Trucks

• Enable Trucks by entering the code "83000F04 0043," and level him to 50 by entering the code "83000F02 05F5."
  
  

Unlocking Goku

• Enter the code "83000F20 0043" to obtain Goku, followed by "83000F1E 05F5" to level him up to level 50.
  
  

Unlocking Hercule

• Unlock Hercule by entering the code "83000F3C 0043," and level him up to level 50 with the code "83000F3A 05F5."