Just finally watched the second episode of あくちぇる・ワールド from the second Blu-Ray disc. And oh my god they had a
Space Invaders scene. I wonder how many people in the audience actually even know what that is?
Other than that, the entire episode revolved around a pun about
"pantsu kure" vs.
"pan tsukure" ("Give me your underwear" vs. "Make bread"). Really. Most random bonus feature ever (but as expected from the people who gave us Shana-tan and the like).