While there is no official or complete unofficial port Hollow Knight
There is no official Hollow Knight ISO for the PlayStation Portable (PSP). Hollow Knight was never released for that system, and its modern hardware requirements make a direct port nearly impossible for the aging PSP hardware. hollow knight psp iso link
There are fan projects designed to run on lower-end hardware or in the style of older consoles: While there is no official or complete unofficial
Conclusion
The Quest for a Hollow Knight PSP ISO Link hollow knight psp iso link