Incredibly fun and doesn't overstay its welcome, but it does feel like something's missing. It's at an awkward in-between stage where it would work really well if it just went more arcadey and used a stage-based approach with multiple ways to approach situations using some of the im-sim-lite mechanics, but the way it presents itself as a metroidvania implies that there will be more mechanical diversity than there actually is.
There are a few spots where the abilities really shine and you'll find yourself taking advantage of the parasitism in fun ways, but it feels like the general loop prefers speed and brute strength over calculated action.
For what it is, it works incredibly well though, and it's just short enough that I highly recommend picking it up even just to play around in the space for a bit, it never gets old whipping through a room at 60mph and leaving every wall stained red in 5 seconds flat.