I couldn't get a handle on the drill movement--it doesn't make any sense to me. Is it supposed to have a buoyant force that makes it rise? Because, I hate to break it to you, but that's not how drills work--
To be honest, the main inspiration was this game from Ludum Dare 48, so the mechanic isn't entirely original (or accurate lol), but I tried to build on it as well as I could.
I do like how smooth it is, and apparently a lot of people in the comments liked it (so maybe I'm alone lol), I just had a lot of trouble predicting where the drill was going to go, if that made sense. Smooth animations tho!