Proving Grounds are places in Tak the Great Juju Challenge. There are four Proving Grounds in total. After the player completes all three levels in a World, he will be able to access the World's Proving Grounds level. Here, the player must choose one of the vehicles. After picking the vehicle you are sent to the Proving Grounds. The purpose of Proving Grounds is to ram the opponing team's (or teams') vehicles for points. Also ram the enemies for points. Whichever team has the most points win. If your team wins, you are able to access the next world. There are certain Power-Ups that appear to help you win. The final Proving Grounds is a difficult level since it is a three in one. The Black Mist copy your points twice if you win both the first and second battles. Now the final battle begins, where the Moon Juju tells the Black Mist to stop using their Juju powers. After winning this challenge, you are taken to the credits of the game. Upon failing a Proving Ground battle will give you a choice to quit or to restart the battle.