The same basic design is used for moving target banks on a lot of games - Who Dunnit, Attack From Mars and Stern Spiderman use similar pieces that work with 3 targets instead of 5. The parts do wear. Interestingly enough, the Stern parts from Spiderman will work in Attack and Who Dunnit, as they are identical.
I think Mousin Around uses something similar, but I've never been under the hood of one.
