Sawagani Karaage from Rakuichi
Sweeeet - Rakuchi has sawagani on their list of specials right now...and done just as I remembered having them ages ago, with a bunch of these bite-sized river crabs teeming live in a glass bowl before they get thrown into hot oil. I've been on the lookout for these things for a while. They may not taste like much, but the salt, grease, and crunchiness go perfectly with a cold draft beer. Just be careful not to poke the inside of your mouth with those tiny legs or claws.