This sprite walks along the ground, trying to stay in front of Mario no matter what. It stands upright when not walking, and fires energy balls from its mouth at random intervals. It cannot be stomped, but 5 fireballs or a thrown item will kill it.
The energy balls from the included graphics use colors 9, D, E, and F of palette C (the red sprite palette). They replace baseballs.
Check the ASM file for customization options. The graphics for this sprite hail from Zelda II Adventure of Link.
Converted to PIXI and added SA-1 compatibility. The original had dead or unnecessary code which has been removed. The default sound effect has also been fixed (the original sprite played sound $31 from bank $1DF9, which doesn't exist).