Emulators on PSP

Nintendo

GBA 

gpSPmod (20090720)* or gpSP-J (20120616)*

*gpSP-J has superior compatibility, gpSPmod has more options for customization (full screen, cheats, etc), both are superior to Kai

GameBoy/Color

RIN 1.32

NES and Famicom Disc System 

NesterJ 1.13 beta2 or NesterJ AoEX  

SNES

Snes9x Euphoria R5 Beta3 NoME 0.2* or Snes9xTYL(me)cm Mod*

*SNES emulation is not that good to begin with, but this is the fastest and most compatible.

SEGA

Genesis and Sega CD 

PicoDrive 1.51b  

Master System and Game Gear 

MasterBoy 2.10 (also compatible with GB and GBC)

Other

PC-Engine and PC-Engine CD 

HuE 0.70  

NEOGEO Pocket 

RACE! 2.16-1.0

Wonderswan and Wonderswan Color 

e(mulator) v082f (multi-emulator)

Java

PSPKVM 0.5.5

ARCADE 

UOcps1psp (CPS1), UOcps2psp (CPS2), UOmvspsp (NeoGeo), UOncdzpsp (NeoGeo CD)  

What about PS1 games? 

You have 3 options: 

• download them from Sony servers (registration required)

• convert isos to eboot using PSX2PSP

• download pre-converted games: Devils-Shadow, PSPISO, etc.