I'm leaving this here although it is in the description too as its very important:
To do damage to your opponent you must attack them with the opposite attack colour than the colour state they are in e.g: Attack with red punches if your opponent is in the blue state.
Punches are Red and will put the player in the red state and Kicks are Blue and will put the player in the Blue state.
The colour of your projectile will be whatever colour state you are in e.g: If you are red you will shoot red projectiles.