Last week was a fantastic week for Xbox Live game deals, as four different games went on sale. This week we’re back to a single sale game, but it’s a good one: Sonic the Hedgehog 4: Episode I from Sega. Sonic’s first Windows Phone title will be on sale for $4.99, down from $6.99.

2010’s Sonic 4 was the first proper 2D Sonic game to hit consoles since Sonic & Knuckles all the way back in 1994. The Windows Phone port is extremely faithful to its Xbox 360 older brother, with 90% of the same content. The mobile versions of the game replace two console levels with new ones (one of which is rather weak, but oh well). Most importantly, Sonic 4’s touch screen controls work really well, making for a fine platforming experience. Check out our review for more details.

Picking up Sonic 4 on the cheap is a great way to prepare for the mobile version of Sonic CD. One of the finest games in the series, Sonic CD is dashing its way to Windows Phone and consoles later this year.

The Sonic the Hedgehog 4: Episode I sale lasts for one week only. Grab it here (Zune link) on the Marketplace.

UPDATE: The game mistakenly showed up at the super-low price of $2.99 for part of Wednesday. It has since returned to the $4.99 price. Thanks to Dark Jedi I Am and the other readers who tipped us.