very good, the mouse movement makes it very accessible for non shmup players, and even just players that arent comfortable with whatever keybinds comes with it.
only like design issues is just u get cheapshot occasionally and lose ur fresh new power u didnt get to use. the center laser attack on perfect grant is kinda cooked as well i played it close range, and it was kinda just a life sink, although its not necessarily a bad thing, maybe i missed a strat or life sink is the intended way.
pretty fun, very easy to get into (just like picking up the game and knowing what to do, not difficulty).