Scripts

I was trying to make it for the single-player mode, but it didn't work. The other scripts play fine, but these ones don't.

What exactly happens? Does nothing play at all, or do the monsters just flail their arms and return to their original position?
If it's the latter, then the monsters either don't have the corresponding animation or the animation set for the arena isn't specified in the monster's settings.
What does the console say?