While you cannot emulate RDR2 via PPSSPP, you play the actual, full version of Red Dead Redemption 2 on your smartphone or portable device using modern cloud gaming and streaming technologies. Xbox Cloud Gaming (Cloud)
However, many users are exploring alternative methods to run the PC version of RDR2 on Android using advanced, modern emulators like GameHub or through streaming services. What is a PPSSPP Zip File for RDR2? red dead redemption 2 ppsspp zip file download portable
There is no official or unofficial port of Red Dead Redemption 2 for the PSP. Therefore, there is no legitimate "ZIP file" that will allow you to play RDR2 on the PPSSPP emulator. While you cannot emulate RDR2 via PPSSPP, you