Press [up] [w] [space] [ctrl] [shift] or click to jump and to jump on yellow rings. Avoid the spikes. In ship mode, hold to fly up and release to fly down. Hit a yellow pad to jump high. Hit a blue pad to jump higher. (Missing a gravity portal.) For bonus points, collect the coins. Press L to toggle effects. (To reduce lag.) Press B to toggle background. (Can also reduce lag.) Cloud does work, but it only records 2 scores.