simple any console moded (bios edit) homebrew emulator or just retroarch what i posted here
you reinstal hacked bios then you can play in any retro emulator on your:
xbox,ps2, psp etc...
console is doesent matter its only her cpu also how much ram have included and gpu
you can use ps2,psp or xbox etc.. those are moded already
of course ps2 will run ps2 games normaly but also can use emulators
you can also buy smartphone with tv out add emulator and connect external controler if its have that thing
or just connect to tv and play on buttons
most popular and easy is nes but if you want play in every find guide to set up retroarch and instal on your hardware
actually it can run on android linux windows and should(if exists mac version) on mac
you can also buy a thing called in Poland tablet im not know how say it in english >.>
posibilites are limitless
buy console what you want but it must be playstation or xbox to be moded for other platforms
i know nes can run everywhere(nintendo 8 bit emulator)
why i write only two must be used simple becouse their design can run any emulator like : sega or amiga etc..
you cant emulate better consoles on cheap or junky psp
if realy you want run everything
only! a good conslole like XBOX or PlayStation or good android device with at least 2Gb ram X4 cores (but better have more ram)
and at least opengl 3.0
with gpu 2 or 1 GB of memory
no s*tty 512mb or have 1Gb ram
Only! becuse you want run everything even wii emulator on your device!
ps2 is moded already for simple emulators like nes