The Swiss Xbox website has revealed the contents of the Pinnacle Station DLC for Mass Effect.
This "remote, top-secret space station" offers 13 battle scenarios for Shepard (at Spectre level) to tackle, and adds around "2-3 hours" of gameplay in total. And that's it, according to a translation on the ME forums.
Pinnacle Station costs 400 Microsoft Points (£3.40 / 4.80). The file is 237MB and has a publish date of 16th June on the Swiss website, which is evidently wrong. No other region with an Xbox website mentions the content, as far as we can see.
The listing follows the appearance of three extra Achievements for Mass Effect, which are based on the new content.
BioWare has been talking about making an arena or Fight Club-style addition for Mass Effect since February, although we've heard little of late.
BioWare is currently hard at work on Dragon Age: Origins and Mass Effect 2.