Tony Hawk's Pro Skater HD is a skateboarding video game, with an arcade-style emphasis in regards to realism. The objective is to score points by successfully completing various skateboarding tricks such as grinds, flip tricks, and aerials. Performing several moves in succession without any pause results in a combo. The player's score is multiplied by the number of tricks in the combo. If the player successfully lands the final trick the score is then banked, otherwise all points in that combo are lost. Pro Skater HD is an amalgam of Tony Hawk's Pro Skater and Tony Hawk's Pro Skater 2, and as such the game does not feature any additional tricks or moves added to later games in the series. Tony Hawk's Pro Skater 3 downloadable content (DLC) was announced on July 3, 2012.[4] Included in the content will be the ability to perform a revert, a trick which involves changing the direction of the board while keeping forward momentum. Originally this ability was only going to be limited for use in the levels that came with the DLC but due to the protracted release schedule, Robomodo released an update for the game that added the revert in all levels the DLC Included Canada, LA and Airport levels with 4 new skaters and and the music track All Nightmare Long by Metallica.