Spark's training program

when you open the second room on the training construct the second part of it is throwing swat teams of the edge. Does anyone know if there is a score you have to get in this one to get to a knew part. I have managed to get about 35 so far and it hasn't opened a knew one yet.

I thought the limit was 21?! go to the red one of the opposite side of it. Thats the one where you have to hand to hand fight them. It's fun. You only get to kill 21 though.