This game is a series of challenges across varies well known NES games. challenges on average are any where from 5-30 seconds. NES Pack 1 is more centered towards early NES games (Excitebike, pinball, golf, donkey kong) while NES pack 2 is centered around the NES hits (Kirby, Dr. Mario, SMB3 Kid Icarus...) I've been playing this game for a couple of weeks now and i thoroughly enjoy it. But i must admit i want to be done with this game. I'm getting mini-game fatigued. If your a nostalgic NES fan, this is worth a play.