For iPhone, touch & tap the screen to go right. For Apple Watch, tap fast the screen to go right. Try to make the fastest time in the lap. A very simple design for Apple Watch. Do you want to compete against your friends? You can send the score obtained on the iPhone and Apple Watch to the Game Center leaderboard. To submit the Apple Watch score to the ranking: 1- The iPhone and Apple Watch must be linked 2- Apple Watch must be within range of the iPhone. open the game application on the iPhone (It's important that open the iPhone application after playing with the watch). When you press send from Apple Watch, a screen with the score ready to send to the leaderboard will appear on the iPhone. Now can already know if you are the fastest playing on the Apple Watch!