Use the PS Vita as a controller.
The LittleBigPlanet 2 Cross-Controller Pack will be released on December 19 priced €4.99, Sony Computer Entertainment has announced.
Cross Controller lets you to use your PlayStation Vita as a controller for your PlayStation 3, allowing you to use PS Vita-only features such as front and rear touch, in PlayStation 3 games. You also get second screen action.
In the LittleBigPlanet 2: Cross-Controller Pack, Sackboy joins up with a group of Space Pirates as they race to find a valuable treasure. On their adventure they'll encounter new obstacles that can only be overcome with the help of the PlayStation Vita.
New build tools also make it possible to begin creating Cross-Controller levels.
To use the Cross-Controller DLC you'll need a PS3, a copy of LittleBigPlanet 2 and a PS Vita.
Source: EU PlayStation Blog