Beat Stage 1 (normal or higher)
Beat Stage 2 (normal or higher)
Beat Stage 3 (normal or higher)
Beat Stage 4 (normal or higher)
Beat Stage 5 (normal or higher)
Beat Stage 6 (normal or higher)
Beat the game on hard
Beat the game on normal or higher without losing a round
Win a round without taking damage
Use the code to unlock the Supervisor in 2P mode
Use the Invincibility code