Here is a tutorial for injecting PC Engine and Super CD ROM ROMs into the PSP's built-in PC Engine/TurboGrafix-16 emulator for those that are interested in doing something like this. : r/emulation
NitroGrafx - NEC PC-Engine / TurboGrafx - Downloads - Emulators
PCE.emu - Apps on Google Play
PCE.emu - Apps on Google Play
ROMs PC Engine - NEC - PC Engine - Planet Emulation