This art is beautiful! I saw someone in the other comments recommending you to implement a bomb cooldown, which is probably a good idea if you want to turn this into a full game, because the boss was really easy to beat, by just spamming bouncy bombs. But it was fun seeing how chaotic they all were! I just think for a full game, it would get old if every bossfight was cheesable that way. Also, I do think the pacing could use some work; the 2nd, 3rd, and 4th bombs felt like they were all given to me really quickly, but I understand that it's a jam and time is limited. And, I think the amount of stuff you coded into this game makes up for it. Great work!