Two Saturn titles from Treasure dated for Xbox Live

Two tough-to-find Treasure games are set to get a lot less scarce in the coming weeks. Microsoft has confirmed a September 14 downloadable release for Radiant Silvergun on the Xbox 360, while Sega sent word separately that Guardian Heroes will arrive on Xbox Live October 12.

Released to critical acclaim in 1998, Radiant Silvergun has never seen an official release in North America. The vertically scrolling shooter has players controlling the titular starfighters as they fly through a variety of time periods with three main weapons that can be combined to varying effect. Radiant Silvergun goes on sale next week with a listed price of 1,200 Microsoft points ($15).

Originally released on the Saturn in 1996, Guardian Heroes is a side-scrolling brawler with light role-playing game elements, such as characters that level up. However, the XBLA version of the game won't be a straight port; Sega is adding "all-new" widescreen HD graphics and online multiplayer with up to 12 players in the Versus mode (or two players in the Story mode). Guardian Heroes will sell for 800 Microsoft points ($10).

This is the first time Guardian Heroes has been remade, but Treasure did produce a sequel in 2004. The Ubisoft-published Advance Guardian Heroes received fair reviews upon its release for the Game Boy Advance.