Moto Trial Racer is a motorcycle racing game that demonstrates integrating QML with Box2D physics engine. The game uses Box2D QML plug-in as a base, but the plug-in has been modified to fit for this game. The audio implementation in the game is provided by Qt GameEnabler.
The example also features in-application purchasing. The user can purchase items from the Nokia Store to enhance the game experience. The actual items are provided already in the installation but are protected by DRM (Digital Rights Management) and can only be unlocked by Nokia Store.
This example is hosted in a Nokia Developer Project, where you can find implementation notes, discover recent revisions, and contribute to the project.