An InputSprocket driver for some USB devices. This release of the GamePad Pro USB software supports only games using Apple’s InputSprocket technology. It does not provide keyboard emulation (i.e., assigning keystrokes to GamePad buttons), so it will not work with some older games that require keyboard input or which look explicitly for an ADB controller. Unfortunately, this includes both the Nanosaur and MDK games that are bundled with the iMac. Most newer games, however, do support InputSprocket and should work just fine with the GamePad Pro USB. A few examples are Quake, Unreal, Top Gun, Flying Circus, Tomb Raider II, and X-Plane 4.1.x.