The presentation from the start is really well done here. Lovely menus and interactions with them. The font choice is nice too. The graphics were very self-consistent in-game with the skeletons, bombs and scenery blocks. Animations on the Skeletons were nice.
The visual and audio feedback on actions like breaking the walls and setting off bombs was excellent, and very satisfying. The gameplay and strategy of when and where to place the bombs was engaging and made it fun to play.
The feedback on combat wasn't there the same way. It wasn't clear when we'd hit something or when they'd hit us. The health bar was very granular with just a number of hearts/lives and each hit removed one. This made the combat overly simplistic and not as satisfying.
We destroyed a lot of blocks and picked up a lot of elements but didn't see an inventory, other than the collected pieces at the top. Was there a reason we were collecting sand/etc.? We didn't really know what we were doing until we found one of the keystones and it took us a long time to find the first one so we weren't sure we actually playing the game properly for a long time.
Nice touch with the Zooperdans and Dungeon Crawler posters in the first room! The voiceovers seemed to work quite well too and is unusual for a jam entry in our experience. These rounded out the game experience for us. Well done on an excellent entry!