Any "PSP ISO" found online is not an official release. It is likely a (ported by independent developers to run on the PSP hardware) or a fake file . Because the PSP hardware is significantly less powerful than the platforms the game was designed for, a port would feature heavy compromises.
The following details clarify the status of any "PSP ISO" or "update" versions often searched for online. Official Platform Availability castle crashers psp iso upd
This is the "Castle Crashers PSP ISO"—the holy grail of the underground handheld scene. The Myth of the Port In reality, The Behemoth Any "PSP ISO" found online is not an official release
