Shakugan no Shanatan shows what would happen if Shana somehow shrunk to the size of a mini-goddess. I guess this is a special feature on the Japanese DVD of Shakugan no Shana. It’s pretty much 3 minutes of pure (cute) craziness with Shana-tan sitting on Yuji’s head, eating melon-pan, sharpening her sword, drooling on Yuji’s head, and yelling "uruchai!" I think if cuteness could kill, I wouldn’t be here writing this. For some reason this episode also reminded me of Pugyuru. It’s probably just the craziness they share in common.
I really love this kind of self-referential humor. The anime takes stabs at itself and ends up with something that could really be a spinoff. Maybe not, but I’d sure as hell watch it! I can’t wait for the next installment of Shakugan no Shana-tan!