Slapdah Games' color-matching puzzler TiQal will be this week's sole Xbox Live Arcade release, Microsoft has announced. It will be available for download from the Xbox 360's online Xbox Live Marketplace beginning Wednesday, March 26, at 1 AM PDT.

Priced at 800 Microsoft Points ($10), the color-coordinating puzzle game features 120 Mayan-inspired stages, 14 different power-ups, and competitive and co-op play for two players, both online and off.

Microsoft also revealed that a free automatic update to Atomic Elbow's marble-roller Switchball will debut on Wednesday, providing owners of the Xbox Live Arcade title, which arrived last fall, with "enhanced graphics for a smoother gameplay experience and enhanced leaderboards."

Microsoft has announced that the already-released downloadable Xbox 360 editions of Doom and Assault Heroes will join the Xbox Live Arcade Hits program this Wednesday. At that time, the price of both titles will be permanently reduced from 800 Microsoft Points ($10) to 400 Microsoft Points ($5).

The expansion of the Xbox Live Arcade Hits program, which highlights best-selling and fan favorite Xbox Live Arcade games, will occur in place of the usual Wednesday release of a new Xbox Live Arcade title. Microsoft has commented that it plans to update the Arcade Hits lineup on a quarterly basis.

The company also released a list and media of Xbox Live Arcade titles slated to arrive "in the near future." The list and screenshots follow: ... Read more