 To do this, the player has to successfully perform and combine aerials, flips, grinds, lips, and manuals, with successful executions adding to the player's score.The point value of the trick is based on time maintained, degrees rotated, number of tricks performed in sequence, performing tricks on specific landmarks on the map, and the number of times the tricks have been used.Successful tricks also add to the player's special meter, which, once full, allows for the execution of special tricks which are worth a great deal more than normal tricks.