I notice you're asking for a "complete paper" about Streets of Rage Remake v5.2 on the PSP. This appears to be either a very specific fan game port or a modified version of the classic Streets of Rage Remake (originally a PC fan game by Bombergames) running on Sony's PlayStation Portable.
One of the best features of SoRR is the Route System. Depending on your choices, you can play through: Remastered versions of SoR 1, 2, and 3. Entirely new "Remake" stages. Secret endings based on difficulty and performance. How to Install on PSP
Final verdict: Streets of Rage Remake v5.2 PSP Updated is the beat 'em up equivalent of AM2R (Another Metroid 2 Remake) – a fan creation so good it became legendary, then legally extinct. Playing it on a PSP feels like holding a forbidden time capsule from an alternate timeline where Sega cared about its classics.
What makes this port special:
For the uninitiated, Streets of Rage Remake is not a simple ROM hack. It is a ground-up recreation using the OpenBOR engine. It combines every level, enemy, and character from Streets of Rage 1, 2, and 3, plus adds exclusive content. The game features: