Algodoo

[A] and [D] to open and close doors.
[Left] = Backwards
[Down] = Stop
[Right] = Forward

The doors aren't that good and need improving.
Make sure that you put the ground collision on A before driving,
or it won't work.

(I got the idea of opening and closing the bus doors from the
pistons, that are usually in marble races)

Anyways enjoy the scene!!!