Telegraph: "The game requires users to touch the G1's touch-screen to play along to tracks including Deep Purple's Smoke on the Water and the Guns n Roses classic, Welcome to the Jungle.
It marks the launch of paid-for G1 applications through the Android Marketplace. Until now, additional software for the handset has been available free of charge, with more than 1,000 applications to chose from.
The Google-backed Android operating system aims to bring the desktop computing experience to mobile devices. T-Mobile launched the G1, the first "Google phone", late last year.
A number of other mobile phone makers said they would back the Android platform, with LG and Samsung confirming forthcoming Android handsets, and HTC and Vodafone unveiling the Magic, a successor to the G1.
T-Mobile also released details of the most popular Android applications downloaded to date. The Weather Channel's app was among the most used by mobile web users, while navigation and social networking software featured heavily, too. There were three price comparison services in the top 10 too, including Shop Savvy and Barcode Scanner, two programs that enable shoppers to find the cheapest online and high street prices for a given product."