Player 1 (red):
HP
Gravity
Move velocity
Jump velocity
Max jump times
Shuriken damage
Shuriken velocity
Max shurikens
Time between shuriken throws
Time between new shurikens
Player 2 (blue):
HP
Gravity
Move velocity
Jump velocity
Max jump times
Shuriken damage
Shuriken velocity
Max shurikens
Time between shuriken throws
Time between new shurikens