R-Type (unlicenced port called Magic Dragon) for Famicom - pretty awesome.

[DevilRedeemed]

it's kind of bizzare but plays really well and is very impressive for what it is. I'm a big R-Type fan so this makes the game even cooler for me. check it out:
http://youtube.com/watch?v=uQmSjZs6BT0
download the rom and give it a go

shameless plug (I have another copy for myself):
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ssPageName=STRK:MESELX:IT&item=120261520935