Reminds me of some creative running/temporary exposure target iDPA stages I've shot. That and Wack a Mole.
Psychologically, exercises like this can be difficult. The shooter can incorrectly zero in on the wrong target. I remember an IDPA practice session where we had three targets at realatively close range and they were painted up a bit. So, they weren't just plain cardboard targets. They all looked like bad guys. We had a red bandana that we would randomly place on one of the targets while the shooter was turned. The bandana was a NO SHOOT indicator. Guess which target got shot the most and was often the only target shot. Everyone zeroed in on the bandana.
I could see a target board moving back and forth in front of the shooters instead of the herky jerky movements of that guy.