The Adventures of Tintin The Secret of the Unicorn - The Game

One of the easier challenge ones to get - you just have to get at least a bronze medal on all of the sidecar challenges - you'll need to unlock them all of course but nothing like as hard as getting all the platinum's. For the two lap timed ones learn where the jumps are to get the boosts. When chasing the truck get as close as possible and on the 'shoot and knock outs' tahe time to aim to make sure you hit on every shot.