Still playing Kameo? Deliberately? Fair enough - then you might be interested to hear that the "Power Pack" has been released onto Xbox Live Marketplace.
It's 46MB in size, costs 400 Microsoft points (GBP 3.40), and consists of a new Expert mode, a Time Attack mode that can be played in co-op (providing you've downloaded the free co-op pack), and Rune Battle mode.
On top of that there are 15 new achievements, worldwide leaderboards and an armour costume pack, according to the Marketplace description.
For more on the Power Pack's contents, head to the game's official website.