MX vs. ATV Unleashed is a racing simulation console video game for Mobile phones, PlayStation 2, Xbox and Microsoft Windows. It was developed by Rainbow Studios and published by THQ; it was released in 2005. It features same console support for 2 players and online support for 8 players. The PC version has a "Track Editor" feature. A PlayStation Portable version was later released in 2006 as MX vs. ATV: On the Edge.