Again^ Galaxy too up 1.3 GB.
Considering the jump from SD to HD, and the fact that Miyamoto even stated that this game isn't re-defining 3D Mario, it's probably using very little quality resources. If it were using much higher quality resources, it would have been much bigger, despite compression techniques. I would like to see a game with higher quality assets in the future, to really push the system.
Amazing part of this, is how over half the game can fit on the RAM...