Guardian’s Crusade (USA) EBOOT PSP
Release Date: January 31, 1999
Unpacked Size: 218 MB
Region: USA (NTSC-U)
Disc ID: SLUS-00811
To play it on a real PSP copy the folder containing the eboot to \PSP\GAME\, note that each eboot needs to be "in a folder", else they'll show up as corrupted data.
Alternatively, "PSX2PSP" eboots can be emulated on PC with ePSXe emulator.