This is very good for a jam game! The graphics are top-notch, the sounds funny (one sound reminded me of Winnie the Pooh), and the mole and the shopkeepers were cute.
The gameplay is good, too, but it was sometimes tedious to stack 20+ blocks to get to a hole in the ceiling. Having the drones follow my mouse a bit would have been nice as well, particularly in those rooms where I started at the bottom and there were 2 enemies (the drones would stick with the mole and I had to work a bit to get them to a good position). And sometimes I would enter a room and find myself in spikes or lava.
The mole could have been a bit more animated, maybe having some recoil when shooting a block. He/She/It could also follow the mouse with his face, or eyes.