My criteria for 'obscure' usually involves limited or no TV distribution. Lupin III earlier did get on Adult Swim, but not as long as something like Bleach.
Speaking of Adult Swim material, today's item is a little..."advanced" for most of this forum's users and a little hard to get into, but it's got enough redeeming points to get a spot here...
8.
Nerima Daikon Brothers
Year: 2006
Span: 12 episodes
Rating: NC-17
Summary: Two daikon-farming brothers, Hideki and Ichiro, and their female cousin Mako are hoping to raise money for their own concert dome to perform in. While trying to get enough money, they have to avoid people hoping to get control of their daikon field or pull money from them, and evade arrest from an over-zealous cyborg policewoman. In the meantime, Hideki hopes to win Mako's heart, and Ichiro may or may not be attracted to his fluffy panda sidekick Pandaikon.
Review: I was in the middle of a huge
Blues Brothers phase when I discovered this show existed, and I can put it this way...if you love the Blues Brothers, you're either going to love this thing to bits, or want it destroyed. My feelings are the former, but it was hard to get adjusted to watching little cartoon Jake and Elwoods either lust after a cousin or a panda, respectively. Each of the characters are very well-developed, and have excellent voices in the English dub. The show is bizarre, surreal even, bouncing from wild musical intervals to over-the-top perversion to genuinely funny moments. This is totally
not a kid's show, especially not the English dub, which was punched up with a little rude humour but is 300% more enjoyable than the original. One of the things I look for in a good adult show is at least a vague essence of heart. Among other scenes, there's a part in the last episode where you think it's all over, and Hideki's dream for the dome has been completely destroyed, and I actually got kind of emotional during this.
It's so hard to describe this thing. The whole show is...outrageous. Yes, that's the word I want. See a few of the episodes, or even just
the intro (this is safe for work; go ahead), and you'll either love it or hate it. Just make sure you're about my age.
Availability: The whole thing is available on DVD from Funimation, in print at this time of writing. The set is a little pricey at certain places, but they have the whole series for free on Youtube.
...I spent $53 on the set, and that was plenty in my mind to reunite me with a little cartoon charicature of John Belushi. 
The whole club depended on Akane (the girl in blue in my earlier picture) to come to school, and the manga club had pushed aside the divider between either club room so much that the Magic Club had only a closet-sized space to operate in.
I guess I'll still consider it obscure because I haven't heard of it outside of Adult Swim (or inside, since I don't watch TV).
