This is a run of my game One Pixel on Scratch, presenting the third easter egg in my game.

This works by having the player bounce on a cloud. As you can see, with the intended route, you are supposed to reach the checkpoint. But, with weird interactions with water, you can stay inside the cloud for much longer with the lower speed given by the water. You can also press up to slowly go up, giving you more time inside the cloud. And the more time in the cloud, the faster you get, and if you get fast enough, you gain enough speed to phase through the wall entirely and go to the air space above.