PaRappa the Rapper ROM & ISO - PSP Game

Desktop Accessories, PaRappa The Rapper Wiki

PaRappa the Rapper´s Funny Adventure by crussader

PaRappa the Rapper (USA) PSX ISO - CDRomance

PaRappa the Rapper PS4 Runs on PSP Emulator - GameRevolution

Parappa The Rapper the Best (B) PS1

PaRappa the Rapper - The Hip Hop Hero (Europe) ROM (ISO) Download for Sony Playstation / PSX

PARAPPA THE RAPPER 2 (PAL) - DISC

Parappa The Rapper 5-Inch Vinyl Figure - Midtown Comics

Parappa the Rapper [SCUS-94183] ROM Download - Sony PSX/PlayStation 1(PSX)

It looks like PS4 Parappa Remastered is the PSP game running under emulation