Algodoo

Ski jumper. Arrow keys move the ski jumper forward and to crouch down to make a jump (down-->up)
Then you reach the jump and try making circular button presses to do many flips. Don`t forget to land the jump right on your ski!

Distance markers are placed showing increments by 1, 2, 10, then 100. Those are optional. All you really need to do is have fun trying this out!