Press [SPACE] to jump. You can also press the circle if you're on mobile, but it doesn't let you jump as far for some reason (only tested using a mouse), but you can use it for straight-fly. The cylinder uses sine waves and gradients to create an illusion. Skins do not require any coins, as there is none in the game right now. The pause button brings you back to the menu (it resets your score too). Any suggestions? Leave them in the comments, and I'd love to hear your scores and what you think of the game!