Are the game discs themselves region-specific? Amazon.com has a game I want, but not Amazon.co.uk - and they'll ship internationally. XBox.com doesn't say anything about region-specificity, but thought I'd better check...
I believe that it's up to the publisher whether or not they want to region-lock their discs. Basically a way to ensure that both large and small publishers can produce worldwide. Smaller publishers often have crazy distribution schemes by region, and region-locks help make sure that their distributers all get what they are contractually due, whereas larger publishers probably will have a single global distributor as well, and thus can afford to be region-free. I'm not sure that region-locking is something that is well advertised, either. Good luck. I'd advise seeing if you can get it locally from a different site.
Some games are region specific and some aren't. This might be useful to you. The site tells you if the game region specific. Obviously it's not a complete list, only the ones they sell. I've found that with a lot of the games I've bought, the US/UK editions have been region free, whereas the Japanese edition has been region specific.
Dance Dance Revolution Universe. You may now proceed with the mocking. I need the cardio exercise, and if I'm going to look like a tit getting it I want to do so in the comfort of my own living room.
The only thing I could see was that it's NTSC, which is the video format. My TV can handle NTSC signals, so as long as the X360 just outputs the graphics in that format, it should work...
I own Warioware Smooth Moves on the Wii, I have no ability to mock anyone for unusual actions they get to upto in their living rooms.
Playing DDR in an arcade, especially a packed arcade, brings the experience to whole new levels. Whole new levels of embarassment that is.