so only minor things.
- I was confused at first by the equipment - what it really conferred until I hit the button. maybe more info on the button would be helpful so I knew what it really gave me (e.g. weapon/shield).
- I was a little sad I couldn't pick things up and hold onto them. but it was a good design choice.
- On that note, it might be nice to auto upgrade pickup. if it's an upgrade, you get it. I'm not sure that's worth the extra code, or if you have a clear upgrade, but it could be nice.