What a beautiful game!!!
There is a lot to love about this. The artwork and atmosphere is so immersive and beautifully put together! They contribute to making the aesthetic very pleasing and cozy, with the simple and wholesome goal of seeing the stars on the surface.
The mechanics are basic but solid. I found it very interesting how you use the momentum of the square to spice up the platforming, and how you change the color to indicate this. Also, using the anatomy of the square to reach edges and overcome cliffs and making it flip over with the physics is a smart choice. I recommend experimenting more with it, especially the ability to flip the square over to another side. My only complaints would maybe be some of the grammar mistakes, and the clarity of some of the entrances and exits, but they are minor.
You and your team did an amazing job with this, PLEASE keep working on it!