Sprite properties, fourth Tweaker/MWR byte.
Format: dpmksPiS
d=Don't use default interaction with player
p=Gives power-up when eaten by Yoshi
m=Process interaction with player every frame
k=Can't be kicked like a shell
s=Don't change into a shell when stunned
P=Process while off screen
i=Invincible to star/cape/fire/bouncing bricks
S=Don't disable clipping when killed with star