The idea is neat. The UI didn't really work for me in a couple of ways:

- The modal input mechanism feels kind of clumsy. An extra click is needed for the most common move, and the buttons are somehow too inconspicuous. At least I kept forgetting to make the use/save choice for powerups.

- The path of terrains/actions taken is really hard to read. I think it's due to overlaying the two kinds of icons on top of each other. It'd probably be better if the terrain was shown as-is, but the action type was shrunk to maybe half or third, placed in a corner, and with an opaque background.