Easy?
Nah, this would be a 4-foot difficulty on the machines.. I'd say medium, the 'new version' game you released, THAT was easy, about 2-foot. and the other one that actually works, that's about a 7 or 8-foot song, which is hard. I hope the one that's broken gets fixed, and I only hope your meaning of 'extreme' is something like Paranoia or Max 300 :p