Very neat game! I enjoyed the soundtrack and the graphics a lot, especially the backgrounds - it's certainly not common to see so much detail in a gamejam. The UI was very polished as well, and the map and objective markers were a welcome addition. On the other hand, I feel like a lot of the dialogue was a bit unnecessary and the story might have worked better if shrouded in more mystery.
The movement was nice, although the combat felt a bit weightless and spammy. The focus on deflecting projectiles was a cool feature, but it also felt kinda broken since you could just mash block and pray. I think it might have been more interesting if enemy bullets were slower, but blocking was more deliberate in return. The bosses were pretty simple, but the "Rude Buster" juggle with the final boss was a neat touch!
The constant equipping and unequipping of the weapon was a bit annoying and got me hit a few times, especially since I'd often teleport or enter a new area and immediately get shot at by enemies. I also think I got softlocked in the first area by killing all the enemies and not having anything to throw at to be able to reach the upper platforms.
Overall, I think the game definitely needs some polish, but it feels very extensive and complete for a gamejam project! Good job!