Funny enough for Liberty City Stories do kill player instantly despite for cheats enabled with wasted screen. I do have PSP go (6.61 Pro-C Infinity) and PSP-1000 (6.61 M33 or other, not sure custom firmware) that works fine with cheat device. Maybe it works only with USA version because I use European version and it's ISO. Maybe it needs a newer video tutorial update just for PS VITA. I did get TempAR working with menu that looks like best alternative, but cheats isn't working despite for cheats on status after using trigger key and CWCheats is a bit mess with cheats because there is multiple same cheats with some edits that makes difficult and it will make game crash to black screen. So Im not sure if I should get a PSP to play them. Ive heard things about how the PS2 versions arent as good as the PSP versions. L+UP doesn't work to get cheat menu to appear. I have a PS2 with GTA 3/VC/SA on it, and was wanting to finish my 3D GTA collection with Liberty City Stories and Vice City Stories. This was despite for I have followed the correct steps with line in GAME.txt in pspemu -> seplugins, plugin in seplugins and cheats in pspemu root folder. It looks like it doesn't work for me with Adrenaline 6.61-6.9 on PS VITA 3.60 permanent custom firmware enso.