Anyone here heard of a game called "Maniac"?

A recent thread discussing electronic puzzles like Nemesis reminded me of it. It's an electronic game for two, with LEDs and sounds. A friend found it at an op shop, and we were addicted to it for a while. But I haven't seen it (or the friend!) for ages now.

I haven't seen Nemesis, but it sounds similar from other's descriptions. At first you don't know what you're doing!
I think it had about four different rounds, where your task was different each time. At the end you see who got the best score overall.