All instructions are in the game, but here they are if you're having trouble reading them: Click on Nyan Cat's body and pop tart to change them Keep clicking to cycle through all your options Click the "FLY!" button to see your creation soar!
I got the stars and rainbow sprites from a screenshot of the original Nyan Cat video: https://www.youtube.com/watch?v=QH2-TGUlwu4
