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

Would you believe that the PlayStation 4 remaster of Parappa the Rapper is actually the PSP version running under emula…

PaRappa The Rapper 2, PaRappa The Rapper Wiki

We're So Happy Parappa The Rapper Is Back To Frustrate Us

Trade In Parappa the Rapper - PlayStation

PS4 PaRappa remaster was a PSP emulation with updated textures

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PaRappa the Rapper 2 (PS4): COMPLETED! – deKay's Lofi Gaming

PaRappa the Rapper 2 hits PlayStation 4 next week

Patapon Remastered for PS4 coming this Summer – Simple Reasons To Press Start

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There's a PSP Emulator Hidden in the PS4 Version of PaRappa the Rapper

PaRappa The Rapper (Video Game), PaRappa The Rapper Wiki

PSP Fanboy review: PaRappa the Rapper

Parappa The Rapper Remastered releases on March, 28th : r/Games

PaRappa The Rapper 2 - Gameplay Video 1

PSP) PaRappa the Rapper review – kresnik258gaming