At the menu, type the following:
XenoPhage, unless otherwise is stated:
bishop Voice message: "YOU SUCK!".
blood Increases the amount of blood.
glassjaw Fighters stun each other.
helium Jump higher and come down slower.
invisible Both fighters become invisible.
shadows The bodies of both fighters disappear.
stain The blood stains the ground.
thoughtjinx Both fighters fall down and die.
xacman hidden minigame
champs you can now choose to fight as any of the champions
Orchid Selena blossoms Fight