Its surprising how a few simple rules can turn into several interesting choices (speaking about the combat) IMO the combat was actually much deeper in mechanics then it seems on its face with its simplicity on the surface. You managed to give the player very interesting choices and you made the combat tie into the exploration well by collection more S*** - strong game loop - Great work!
I think the input was unconventional and it detracted from the ability to control the character. Also the monsters seemed inconsistent in their difficulty - i think some were taking turns before me?
With a few tweaks I think the game would would be really interesting, slap on an engaging story and some more player direction as to why to keep progressing and you've got yourself a fully unique game.