Roland GR-700 guitar synth. Shot sent my way via drsquidd. Title link takes you to more synth shots by drsquidd.Update via the comments: "I used to own one of these. For anyone who is interested, it is basically a JX-3P with ok pitch to midi."
EVERYTHING SYNTH
Title link takes you to a 5.17M WMV by Legion. Mirrored here.
"The best way to get 8-bit sounds is to employ a real NES system or Game Boy for fifteen bucks and go to town — nothing else sounds quite the same. But for the next best thing, and the ability to do evil things to those sounds within a serious host, this free plug-in from Japan that will do the job"
flickr by rrazor.