I really like the concept and ideas but it is a bit poor in content for now. It is obviously very early in its development so it's a bit natural but fleshing out the dungeon progression or the crafting could create more than just a quick run in the dungeon, chests, then boss. Also more on the technical side, but all the enemies are the same in the dungeon it's no problem but then it feels weird that the characters end up different once transformed. Maybe could be another phase of the transformation or the concept of another dungeon, just throwing ideas.
But apart from that I really enjoyed how smooth the transition between the state of the transformation came up. Nice work for now I'll keep an eye on it.