I thought I was doing pretty well and then I went through a door and the game said I was a parasite and killed everyone. I'm a bit confused, but I guess I am not supposed to kill the bugs? I think it told me that like halfway through.
Other than that weirdness I thought that the game was pretty fun! Controls are pretty good, graphics are nice, and the puzzles make sense.
I'm not sure if this constitutes a Metroidvania though.