Hollow Knight (PSP) — Updated ISO Release Notes
A "demade" version of the game featuring 8-bit style graphics and sound, designed to capture the feel of a classic handheld title. PSP Compatibility: hollow knight psp iso updated
If you are looking for that "updated" portable experience, there are much better ways to achieve it than a PSP ISO: Hollow Knight (PSP) — Updated ISO Release Notes
For the best handheld experience, users typically look toward the PS Vita homebrew community explain the technical reality
Let’s cut through the misinformation, explain the technical reality, and explore the actual best ways to play Team Cherry’s masterpiece on a handheld—whether through legitimate ports, hardware mods, or clever emulation workarounds.