Really loved the hand drawn art style with this one, the game itself from start to finish oozes personality and the aesthetics of the game itself feel really unique. I loved the menu music, and the UI visuals and SFX. The bomb mechanic was cool, as were the breakable objects. I would have liked to seen more being done with the bomb mechanic, although I appreciate the time limit with the jam. It feels like there is some hidden narrative going on, which I would like to see more of. There was a cinematic vibe when you set off the black ooze, it genuinely surprised me and felt intense because I went into the playthrough blind. So awesome job overall with all of that!
The only thing I didn't enjoy as much was the player controller, it is maybe by design for it to be fiddly to make it more difficult, but there are times when the performance dropped (I'm guessing to do with the breakable objects?) and it made it feel almost impossible to get myself out of certain situations. A couple of audio bugs here and there as well.
THAT being said, overall you did a great job with this in 4 days. Awesome art style, some cool music and a clear game objective + design. Keep working on it!