? Game Center Leaderboards & Achievements? Custom Track Builder ? Wi-Fi or BlueTooth 2-Player ? Race Against Ghost ? Global Leader Boards ? Lots of Built In Tracks Race on 30 challenging rally courses that vary in difficulty from Beginner to Extreme. ? Build Custom Tracks Make your own dirt bike tracks with custom jumps, cliffs, etc. Use the Level Builder to create, save, load, and edit 10 custom tracks. ? Real-Time Multi-Player Real-time race against a player on a second iPhone/iPad/iPod on the 30 global leaderboard tracks or on your own custom tracks. ? Two Computer Players Two computer racers will copy your previous two races on each track to give you some competition. ? Race Against Your Ghost Optionally save your race and then re-play it in the form of a ghost to race against. ? Five-Place Finish Line Time Tracking Ghost racer time, your time, two computer vehicles times, and Wi-Fi BlueTooth opponent race time is displayed on the five finish line track time slots, so the competition is more real. ? Two balance control schemes: Vertical Slider or Tilt to Balance. ? Game Center Leaderboards. Got what it takes to hill climb, wheelie, jump, flip, T-Hop, stoppie when necessary, and balance over obstacles to finish each track? Tracks range in difficulty from BEGINNER to EXTREME. Make and save your own tracks. NOTE: To race against a player on another device, you must have one of the following: 1) Have BlueTooth enabled on both devices and be within BlueTooth wireless communication range, or 2) Have Wi-Fi enabled on both devices, both devices can connect to the same Wi-Fi router that supports local peer-to-peer networking (default on most home routers, but not on most "Internet cafe" routers). OVER-THE-INTERNET CONNECTIONS ARE NOT SUPPORTED AT THIS TIME.