Planet 51

There are 10 Billboards in the game that can be “Jumped” through. These are ALL located on the above collectable maps. When jumping through the designated billboards, in the corner of the screen it will display a message showing what number out of ten that you had just jumped through. There are 8 Billboards in the “Suburbs” and 2 in the “Town” sections of the game. Do this for all 10 and the achievement will unlock.