I enjoyed playing it. Others have mentioned the basic platforming mechanics as a criticism, which I don't really mind as I am not big into platformers/skill based platformers myself, so it wasn't something that was bothering me. As for further development I would recommend having a more open non-linear level design with some backtracking to reach previously unreachable parts with found character uprages like double jump and the like, with the bonfires serving as checkpoints to respawn (my guess is this is what you are going for anyway)