I have to agree with Weaver.
Only mainstream games are reviewed when they are bad.
A fantastic underground game/underdog like M&B is only reviewed when it is loved by the gamesite and they want to 'promote' the game to become more well known.
And well, it is true that graphics aren't as sophisticated as is possible, but it makes it much better playable for people who don't have a dual core machine with a brand new graphiccard! (like me)