Very much enjoying this. The head-swapping mechanic is a neat spin. The graphics and sound are both very good. I especially liked the mix of environments in the level. This made the boring hallways more interesting. I'll definitely be following this one's development. There might be a lot of indie pixel-art platformers around, but I think Dead Knight's head-swapping mechanic will lead to some clever level and puzzle design.

It took me a while to figure out that all chests and doors required lockpicks, which I thought was a bug at first. Perhaps it might be worth adding a keyhole or padlock to the chests, or telling us what's up with a helpful skeleton.

How do I interact with the shop? I have plenty of teeth but can't buy lockpicks. Viewing the full-level map in the shop gives some unexpected behaviour. The whole level (that is, the shop) is tiled across the screen. I'm guessing this is because the viewport for the map doesn't scale down to the shop's size. This problem only affects the shop. The other single-room levels are fine.