whats cool is that he didnt use springs, and this is awesome! im just confused on how the top moves up instead of having gravity pull it down (at the end)
it might be just me but my computer doesnt save the script for some reason, an its not just ur scene, noones ever saves except the ones that are called onCollide by this 1 guy.
so i had to manually enter the script, i hope there wasnt some sort of special detail for it that i missed