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From the beginning you can choose a karting, but not all of them are unlocked. As you progress with the game, the karts will be unlocked one by one. While racing, you collect coins, which are used to upgrade your car. It don’t have to be this way if you are using our Angry Birds Go Hack, which unlocks all the cars. Also, a very important currency in the game are the gems. Gems are needed to buy new kart and they are collected through racing. Although it helps you to unlock new cars, our tool helps you generate as many coins and gems as you want.