Xbox Live may have been down since Tuesday, but when it pops back up in the (very) near future, you'll be able to download Lumines Live! via Xbox Live Arcade. (Update: And now it has.)
The previously PSP-only puzzle game costs 1200 Microsoft points (GBP 10.20 / EUR 13.96), and for that you get classic puzzling, a time attack mode, online head-to-head play, and 12 different skins to work through. Skins of course change up the gameplay as well as the backgrounds.
On top of that, you will soon be able to spend 600 Microsoft points (GBP 5.10 / EUR 6.98) on an "Advance Pack" which adds 22 new skins (as well as adding a golden yacht to Tetsuya Mizuguchi's berth at Tokyo harbour, presumably).
Microsoft also revealed this week that we can expect to see Contra, Gyruss, Ultimate Mortal Kombat 3, Mutant Storm Empire and Small Arms among others within the coming weeks of Xbox Live Arcade.