The gesture sensor and the driver I'm using for it take some time getting used to. Also with small changes to the Arduino driver for the sensor I could not only decode up/down/left/right swipes but also swipes at odd angles. I made a small game that works as a training mode for MakeKontakt, where red ships appear and you need to shoot them by swiping in their direction. Hits are confirmed with a green plus while misses are indicated by a red X.