In the big and medium sized levels you start in an elevator room. And that is also the fact on this floor.

But where is the elevator? Well it's right there.
The many Fake Hitlers indicate that this level is not really what it seems.

The Gold Key is found in the south-western corner, and the Silver Key in the south-eastern one.
Pick up all the powerups and treasure you find.

By the way, in this level you really have a chance to kill the par time.