http://uk.wii.com/software/interviews/mario_galaxy/vol1/ These guys are geniuses. Turns out this studio (new EAD group), wanted to build a small game with new characters. But Shigsy toddled along and told them to make a bigger game with Mario. They've also built the controls to be accessible by all, but at the same time the game itself said to be harder than Sunshine (check the health bar bit). Which is exactly how a game should be.