This is a very wholesome game. The story is the game's strong point and it's great how you've managed to combine it with the bullet hell mechanic.
The visuals are great, they're not only beneficial but they compliment the game well. I could immediately recognise Kevin's music and it brings me positive memories.
The only real downside is the bullet-hell mechanics, the main issue is that your game falls into the, and I'm quoting theChief from Discord for this: "the "it's okay if the player is hit, they've got a healthbar - so we'll make it flat out impossible to avoid damage" trap." There also isn't really any indication that the player is about to go into bullet-hell mode.
Other than that, the bullet mechanics are good and I was able to get through it to the end.
Overall though, this is a great addition to the jam. Good luck for your next project :D