After getting, loving, and beating Chibi-Robo, I got all my friends to play it. One stayed up all night and got pretty close to beating it (he finished it later when I went to his house), one played a lot and seemed like he wanted to borrow it, and the other played it a bit and wasn't all that interested. So, yeah, watching someone else experience a single-player game when you know its ins and outs is pretty fun, but it's usually better to just do multiplayer. At my place, it's not a get-together until a few rounds of WarioWare: Mega Party Games and maybe a race or two of Sonic R have been unleashed on the TV screen.