I have had 4 of these and they all worked just fine, i am a fighting game fan so i checked out all the fighters and as far as i could tell they worked perfectly, even SF3 3S. The last one I had was the 3025 from paradise arcade (where i bought all of mine from), and the only issues I had were with the newest games like MK4, Wargods, and some Tekkens, but I heard that with the newer dual core setup they all run fine. I personally liked having these but i ultimately sold them to buy a dedicated original i found at the time. I will probably build one more to keep when i have all the original games i want. For the cost, and the fact I don't have a 10 acre basement to put all the games i would like to have, these are a great alternative. I highly recommend these systems even though they may not be politically correct around these parts, but i also understand the desire to collect and preserve the original classics, I am after all an arcade addict and have no desire to go to AA (arcades anonymous).