Algodoo

This is Leg 4 of the Amazing Marble Race! Here, the final 16 have gotten through
3 legs and lost half of their original number. However, 5 of them will not make it
to the 5th leg. Only 11 can survive up to Leg 5. This is also the 1st leg where your
rank determines your starting time, if by a negligible amount. This is the start of something big!
Difficulty: 55%
Simple Components: Controller, Failder
Complex Components: Teleporter
P.S. Why does the leg look like some bizzare type of praying mantis?