You are trying to save the gem from the lava and stop it from melting with your hovering trampoline. The trampoline will stay on the same X position as your mouse. P.S. when you want to play again you have to DOUBLE-click the flag.
I, unlike tons of other remixers, actually added some stuff to the project. I made it harder, less reliant on luck, and changed the winning score form 10 to 20. The main detail I added was that it starts off really slow and gets faster. I also made it impossible to win, keep playing, and then, when you eventually fail, have the "you loose" sign come up. P.S. You can advertise in the comments but only once. If you want to advertise several projects create a studio with all the projects you want to advertise and advertise it.