I've decided that ニニンがシノブ伝 2X2=SHINOBUDEN is worth the time. No, it doesn't have any content whatsoever. It's just so stupid, it's funny. Though, I most likely wouldn't bother continuing it if it isn't for the cast as mentioned before. That might explain why I never bothered with Azumanga Daioh after 15 minutes into the first episode. Kuwashima Houko as Kagura wasn't enough to keep me watching, not to mention that she doesn't even have much screen time.