Really, really fun game. I love the use of the sun as the main mechanics alongside the puzzles. It's hard tho. It can get really big brain later one.
Love all the different solutions you guys came with, really good puzzle design, even if they're hard to do.
I agree with some comments that the controls take a little while to get used to, mostly using E to transform.
Besides that, it has very charming visuals and dialogue, and the movement-tile system or whatever feels really good.
Really cool setting and theme as well, all of this really fits the theme! Great job!