If you see a website claiming to offer a "Red Dead Redemption 1 ISO" or a "PSP Port" of the game, it is a fabrication. The game was released in 2010 for the PlayStation 3 and Xbox 360. It was never ported to the PSP, nor was it ever intended for that hardware.
The short answer is no. Rockstar Games never developed or released an official version of Red Dead Redemption for the PlayStation Portable. red dead redemption 1 psp download
A: No. PPSSPP emulates PSP games. Since RDR was never on PSP, PPSSPP cannot run it. If you see a website claiming to offer
If you search for a Red Dead Redemption 1 PSP ISO or CSO file, you will likely find dozens of YouTube videos and websites claiming to host the game. You should approach these with extreme caution for several reasons: The short answer is no
Red Dead Redemption (2010) was never officially released for the PlayStation Portable.