Enjoyable metroidvania, a bit easy for my taste on normal but has s difficulty selector and a bunch of secrets, collectibles and such.
The map isn't as big as other games in it's genre and since this is an H-game there's a bunch of CGs, all still images but can't complain, also the game features a SFW mode which is a real valuable option since the game holds up really well, might be a bit expensive for it's duration so I would suggest to wait for a discount