Power Stone Collection (Power Stone Portable in Japan) is a compilation of the 3D fighting games Power Stone and Power Stone 2. It was released in 2006 for the PlayStation Portable and includes a few enhancements. The original Power Stone now included the four new characters introduced in Power Stone 2 (Accel, Gourmand, Julia Whitepearl and Pete), while the sequel contained the two characters originally ommitted. Both games also contained new unique items. The PSP game is available through a physical UMD and as a PlayStation Network download.