Play here for slightly less lag: https://forkphorus.github.io/#413883587 If it lags, close other tabs and play in small screen. Get from the blue tile to the purple tile to pass each level. Use the arrow keys, WASD or tap the sides of the screen to move. Jump on pink, avoid orange, and don't fall off of the tiles. Move onto the red tile to reveal hidden tiles. If there is more than one red tile, each one reveals a specific group of hidden tiles. Hold down the key you want to press for about half a second to make sure it registers it. When you beat all 20 levels, the screen will be a solid light blue color, with no tiles.
@cs383763 for the original project. I made it mobile friendly.