When I saw that Mario was jumping from planet to planet in space I couldn't believe my eyes, I saw it as the death of Mario. But according to everyone, and I mean everyone (IGN, Commercials, Gamespot, Friends, Forums etc.) this game rocks! HOWEVER I am not a big fan of never-ending games, So how long is the playtime on this game? I don't hardcore play games and I can't usually play for more then 4 hours without stoping. So 20 hours would suit me good, please tell me 20 hours!