Anki OVERDRIVE Starter Kit (sold one after the other) and a compatible iOS or Android device are required to play, PEDAL TO THE METAL! Take your Starter Kit from 8 conceivable track configurations to more than 18 with the Speed Kit!, If speed is what you wish to have, then look no further. Build long straightaways where there may be nowhere to cover! Put the hammer down and outrun your opponent or take aim and do battle., Anki OVERDRIVE’s modular track pieces make it easy to build epic battlefields anywhere you wish to have, in seconds. Build on couches, coffee tables, chairs, you are handiest limited by your imagination., Adding Anki OVERDRIVE expansion Supercars and Tracks in your Starter Kit creates nearly limitless how one can play.