This is a pretty interesting action RPG, with many story paths to take and a neat fighting system with a
lot of different special attacks. I think it'd make a great TAS. With skippable cutscenes and fast action, what could go wrong?
I've tried to find some glitches from it, by using the stone wall move to get pushed through collision for example. But so far, no interesting results. Well, in one spot I managed to push the main character through a treasure chest, but it didn't help.
The trap treasure chests also fly in air like rockets after they're defeated. Tried to shove my character between it and the ceiling as it flied away, but no glitches occurred.
Anyway, found
one very cheap tactic that allows you to deal damage quick and safe. It's of use in normal playing at least, and probably in a TAS too. The trick can actually be done a lot quicker than in this vid, by using a normal attack to launch the enemy instead of the unblockable grab.
Gravel is a beginner's special move that can be learnt from normal enemies near the start of the game. It's normally almost useless, but if your opponent is right above you, it turns a deadly weapon instead. It's great that you don't have to go out of your way to a shop to get it... maybe you don't even have to visit a shop at all during a run of this game.
EDIT:
My first playthrough was using Hibito. Now I've started another playthrough using Guy. He has one interesting asset Hibito didn't have, and that is a very quick dashing air attack - you can glide the lengths of many, many screens in mere seconds using it. But, in a cruel twist, this dash might not come in handy too much. It has a slowish cooldown and the game doesn't have many long stretches where you can use this skill to its full potential (too many invisible walls and fights interrupting things). I think it might work well somewhere where there's uneven ground that makes normal dashing slow, at least.