However, I believe you might be referring to a fan-made or converted version of the game for PSP. There are communities and websites where enthusiasts share and distribute converted game files, often in ISO format, for various handheld consoles, including the PSP.
While you won't find Arkham City on the PSP, there are two major official Batman experiences available for the handheld: batman+arkham+city+psp+iso+link
If you want to play a game from the Arkham series on a handheld, you have a few official options: However, I believe you might be referring to
You may encounter "Batman: Arkham City PSP ISO" links online. These are typically: : Often a modified version of LEGO Batman or Justice League Heroes with textures changed to look like the Arkham series. These are typically: : Often a modified version
was never officially released for the PlayStation Portable (PSP).
An action RPG where you can play as Batman alongside other DC heroes. Where to Play Batman: Arkham City Officially
