However, "better" is subjective. If you define "better" as "playing Hollow Knight on a PSP," the best method today isn't an ISO, but (specifically if you are using a PS Vita, the spiritual successor to the PSP).
At best, you will download a renamed, corrupted file that will crash your emulator or brick your custom firmware. Better Alternatives for Portable Metroidvanias hollow knight psp iso better
Keep an eye on developers like @Rinnegatamante or @frangarcj on Twitter, who sometimes port indie games to the Vita natively. Conclusion However, "better" is subjective
Why Finding a Hollow Knight PSP ISO is Hard (And Better Alternatives) you will download a renamed
(which actually existed, running at a shaky but heroic 30 FPS), the PSP ISO was the stuff of myth.