A PlayStation Portable version was later released in 2006 as MX vs. ATV: On the Edge.[3] In the PlayStation Portable version, there are several modes of play covering the entire world of pro ATV and MX racing like Hill climb, FMX, super cross race and others. In this game, players can drive not only ATVs and MX bikes but dune buggies, golf carts, stadium trucks, monster trucks and sand rails. Besides obvious graphical differences and the addition of several new playable areas, the game lacks the ability to fly airplanes unlike in the console edition of the game. The game has been marketed as MX vs. ATV: On the Edge in both magazine articles and in the box art. However, in the game, it is referred to as MX vs. ATV Unleashed: On the Edge.