That was amusing and a blast to play.
I think the text needed a bit more polish, the capitalization in the explanations was a bit all over the place, and the handwritten text of the cutscene was a bit hard to read.
Aside from that, though, I was amused by the drawing style, the sun's animation (BEEFY ARMS!) was great, and the increasingly ridiculous array of weapons was great too.
The sun giving up a little bit in caught me by surprise and made me laugh. I imagine there would have been more phases if you'd had more dev time?
All in all, great work!