Elias tried to quit. He pushed the "Home" button, but the menu didn't appear. He held the power switch, but the screen stayed lit. The shadow on the screen wasn't moving anymore. It was staring back at him, its hollow eyes reflecting the glow of the LCD.
A recreation of the game's mechanics and the first area (Forgotten Crossroads) built specifically for PSP hardware. These are typically distributed as hollow knight psp iso portable
The search for a "Hollow Knight PSP ISO" typically leads to one of two things: a fan-made port for the PS Vita (the PSP's successor) or unofficial "demakes" and homebrew projects. The PS Vita Port Elias tried to quit