Every second map had purple background, I think it is because a texture issue. Why did I keep playing? Because that black hole effect is so impressive, I couldn't stop staring at it!!!!

Black hole looks so pretty! I think the stars are shooting the wrong way if you want them to help it look like we're falling. As a physics teacher, I was super weirded out by the objects flying a way from the black hole. They would get sucked in too! Like others said, I would've liked to be able to move more. I couldn't even tell I was falling in the beginning because there was no feedback for my motion. Definitely a a good foundation!