It's probably only statistical but in practice I feel like everything including doing nothing will kill you. This exact aspect aside I like the overall silliness of the game including the fluctuating health but also the control you actually have, the controls are precise and the game is pretty fun to play, cancelling opponents' bullets using yours, with the right difficulty for me.

It has nice style, it was kinda hard to know why my hp bar was rapidly slightly increasing & decreasing. The main mechanic is very interesting but needs improvement, from what i can tell, there's no incentive to dodge when you can just kill the enemies and their bullets quickly. (couldn't tell if enemy bullets are destructible, i think they are)