I've got real admiration for the theatrical trappings, with panels falling off the back wall and gyrating stagehands gussying up the set as you stroll through, but I think coming back to this style of gameplay doesn't hit the same for me anymore. the treasure hyperfocus on impressive boss fights is here without the richer mechanics of gunstar heroes or alien soldier, leaving much stricter scenarios where the player has less leverage over the proceedings. it's heavily setpiece-driven and thus built upon cracking open whatever essential strategy solves each individual encounter rather than learning particular mechanics over the course of the game. a good example would be izayoi, who has a rapid arm extension attack that aims for your head, so if you throw your head above you right when she starts tracking, you can repeatedly have her whiff and then bop her in the face when she briefly exposes it afterwards. that's a cool little extension of the game's primary mechanic (you can throw your head in any direction), but once you lock it in the repetition of her behavior pattern and her cyclically available weak point make the fight rather static.

not sure what to think of the different abilities you can get with various heads throughout either. theoretically I could've enjoyed having them woven in through enemies or something else organic a la kirby, but having the abilities just sitting out in the open right where you need them feels a bit raw. it's especially apparent given how few there are that alter mobility or do anything other than make combat easier; perhaps a bit of tunnel vision on the developer's part, even though you can tell they attempted some actual level design here. you may get a sequence with some wall-climbing thanks to the spiky head ability, but these segments boil down just to "scale the wall with the powerup" without many complicating factors thrown in aside from a late-game segment where you use it to stall on the ceiling and avoid rocket trains zooming by. the way that abilities are applied in the boss fights also fall into a narrow paradigm, with more than a few bosses having abilities sitting around that effectively shut them off: time stop in multiple fights, both a bomb with crazy damage and invincibility in the aforementioned izayoi fight, and the hammer in both rever face and the final boss fight. really something where some sort of trade-off regarding grabbing the ability would've made more sense; the developers settled instead of interleaving junk abilities in the rotating ability selection that will inevitably cause you to eat a lot of damage until they wear off.