It looks like two games have managed to pass Microsoft’s certification testing this week, leading to a rare week when more than one downloadable game title hits the Live Marketplace service. One title is an arcade port of the classic circular shooter, Gyruss. For 400 Microsoft Points ($5), gamers can experience the retro shooter and its Tocatta and Fugue in D Minor soundtrack; Microsoft promises both an original and enhanced mode, with 3D rendered graphics. The usual assortment of achievements is included, along with multiplayer support via Xbox Live. The second title to hit will be 3D Ultra Minigolf Adventures, ostensibly a sequel to the original PC title, 3D Ultra Minigolf. For 800 Points ($10), gamers will get 36 holes on three different theme courses, online Xbox Live play and a course editor, along with related Achievements and Gamerscore. It isn’t clear from the press release whether custom courses will be shareable online – this would be a nice feature, but it doesn’t seem likely that this would happen.