This boss will throw fire particles at Mario. Sometimes it will throw a thrown-block. You can defeat it by throwing carryable sprites at him. Everytime his HP decreases, it will enter in a frenzy state, jumping around and stunning Mario everytime it hits the ground.
When this boss is defeated, it will end the level.
There are lots of things that can be customised in the ASM file:
-Particles to spawn (extended sprite).
-Tiles to be used by the sprite.
-Time between jumps.
You can customise a lot of things even for each HP. Check the ASM file for details.
Author sent folder with PIXI version. GIEPY version is still present.
I think it's a ok boss. It can easily be cheesed by spinjumping on top of it untill it spits throwblock. Although it can be made to always spawn projectile above, it doesn't save it from cheese very well, especially since you still can spinjump on top of it when in "frenzy" mode and wait untill it's over. (it also looks kind of silly when it repeatidly changes its direction when directly above it) It'd benefit from disabling spinjumping on top of it, or making it an option (like your Bowser Blade submission). Nontheless it's a welcome addition to pool of bosses.