Had this happen on a local machine, it was like that when I stepped up to it and no amount of wailing on it could get it unstuck (even rolling over the lit Spider inlane didn't free it, the popup just kinda wiggled under its trapdoor). Kinda surprised the game wasn't going into ball search. Played two decent games on it anyways, even with the handicap it's fun. I can't think of another game like it.