I do not own the game, but I have played it a few times. It’s pretty fun, but as a guitar player, I find it frustrating because it’s totally different than playing a real guitar. I’ve talked to other guitar players and they share the same frustration. But, if you play it enough, I guess you can get past that.
I see the game as a modified version of Dance Dance Revolution. Instead of stepping on buttons on the floor pad, you have a makeshift guitar with buttons on the neck. But like a real guitar, you have to make sure your right hand is in sync with the left hand. The right hand manipulates a switch that acts as the part of the guitar where you strum the strings. The game tells you which buttons to push and the more notes you hit, the more points you get.