Hidden Treasure: Guardian Heroes out this week on XBLA [update: no it isn't!]

Hey, remember earlier today, when we said you'd have time to get through Radiant Silvergun on XBLA before Guardian Heroes came out? Well, we were mistaken -- it'll be impossible to finish Radiant Silvergun before then. Major Nelson just announced the release date for Guardian Heroes, and it's ... tomorrow.

The questionably (and optionally) remastered Saturn brawler shares a release date with Rock of Ages, The Baconing, Mortal Kombat Arcade Kollection, and the Ugly Americans game. It's like another Summer of Arcade in one single day.

Update: Major Nelson just tweeted that the listing was a mistake, and Guardian Heroes won't actually be out tomorrow.