i had a kiki-joy or something like that...it sucked bad. The latency was horrible. Now I use a blue usb adapter that has a ps2 and an n64 input on it and it works perfectly. Timing is great and it kicks ass on mame.
Ususally the emu lets you remap the buttons to any config you want. The only thing I've run into is that having the analog button "on" on the ps2 controller messes up the button mapping on some older games.
Mine is a different shade of blue but otherwise the same:
<a href="http://www.lik-sang.com/info.php?category=55&products_id=93&" target="_blank">
http://www.lik-sang.com/info.php?cat...roducts_id=93&</a>