Not a Metroidvania at all (no non-combat abilities, several keys, several NPC quests, and choose at forks a couple of times during the game in what order to complete the necessary ones). High difficulty platformer, action RPG and slasher. There are many bosses, simple builds, even some kind of quests (characters are encountered along the way with requests to save or defeat someone). If you like (or are at least loyal to) platformers and don't mind a complex slasher game, then playing is recommended.