PSP RPG's

[Halazar]

Are any of the following RPG's for the PSP worth buying?

 

Monster Hunter series

Valhalla Knights

Legend of Heroes series

 

 

Any other good RPG's you guys could recommend for the system? I already own Crisis Core, Tales of the World, Brave Story, Jeanne D'Arc, FF Tactics: WotL, and Valkyrie Profile Lenneth.