Thanks! I'm really glad you liked the UI and menus. I got a lot of feedback about them in previous game jams, so I kind of knew what to focus on this time.
As for the wall jump, that was a design decision. You only get one wall jump, but you have unlimited jumps when climbing over an edge. I may revisit that, though, since it seems a few people expected it to work differently.
About the enemies attacking from above, that's a fair point. I didn't have the sprites to let the player shoot vertically, so that limited the combat a bit. I may rework that by making enemies approach more from the front or behind, or maybe add some kind of auto-aim like in Earthworm Jim, which was something we had considered.