Amazon has Dissidia Final Fantasy for the PSP for $28 with free shipping.
Key Features:
* Legacy - Experience the high-quality world and gameplay mechanics of Final Fantasy presented in an action-packed environment where players can glide through the air and dash along walls.
* All-new battle system - Action-based battle system combines all-out brawling alongside RPG-based character development in an original system developed by the creators of the Kingdom Hearts series.
* Ultimate cast of characters - Fan-favorite heroes and villains from the entire Final Fantasy series come together in one game for the first time in a remarkable new tale with fully-voiced CG movies and real-time events.
* Fantasy match - Players select their favorite Final Fantasy characters, sided with either Cosmos or Chaos, to set the stage for their fantasy match.
* Series Staple Battle Features - Accessible through "EX Burst", players can experience gameplay faithful to the originals through memorable battle features such as "Limit Break" and "Overdrive". In addition, longtime fans of the series can enjoy the ability to summon Aeons and options such as the "command battle" system.
* Community - Continue the experience by trading Friend Cards, creating items and sharing AI characters with other players and even engage in virtual AI battles made possible by the PSP system ad hoc mode.
Amazon.com: Dissidia Final Fantasy: Sony PSP: Video Games
Dissidia Final Fantasy For The Sony PSP $28 + FS 
