spoilerz

this game is pretty difficult, so it might help to have some spoilers for the puzzles. (i hope these also make you appreciate the thought gone into this more - each enemy has their own gimmick.)

stage 1 - the enemy introduces you to green zones for attacking.
stage 2 - the enemy throws TNT at you, which you must dodge by jumping across the circle, otherwise you take damage.
stage 3 - the green zone is now moving! also, you're introduced to auto-jump tiles.
stage 4 - after you hit the enemy, auto-jump tiles are placed as such that the will bounce you to TNT. you have to press Z at the exact moment you hit an auto-jump tile to safely disarm the TNT. (i'll admit this is not very intuitive..)
stage 5 - what now? there's no green zone at all! luckily the enemy reacts to misses by throwing TNT, and when the TNT explodes it will hurt them.
stage 6 - this enemy introduces you to locks. you must jump to the lock to disarm it for a few beats, and quickly jump your way to the exposed green zone.
stage 7 - every tile is green, this should be easy! nope, the boss is invulnerable to everything except for perfect hits.
stage 8 - there's now two opposing locks, so you can't jump on them. as in stage 5, the enemy will launch TNT upon misses, and this time they destroy the locks so you can get a quick hit in.

there's now a playthrough video showcasing these strategies. also, i fixed a timing bug in the latest version!