Algodoo

Marble Race 1:

Key List:
return/enter releases the marbles from the start
1 opens the safe zone (Multyply marbles if nessacary)
2 releases the marbles from the safe zone
3 starts round 2
4 opens the safe zone on round 2
5 releases the marbles from the safe zone
6 starts the final round
7 shows the survivors

This took a lot of effort to make (:
If you use this marble race on any website, (like YouTube) please give credit.