Hollow Knight is a modern, demanding 2D game built in Unity, requiring significantly more processing power and RAM than the PSP provides. Therefore, any file claiming to be a native PSP version is likely one of the following: An infected file designed to install malware.
Hollow Knight received widespread critical acclaim for its: hollow knight psp iso extra quality
This requires a PS Vita, not a PSP, and uses a .vpk or data wrapper format rather than a standard PSP .iso file. 3. Malware, Adware, and Phishing Risks Hollow Knight is a modern, demanding 2D game