Episode 23 and 24
Disclaimer: they mess up the order!
"Why are we still here?" D.S. look through a list. "Damn it, they did two extra OVA episode because they forgot two episodes! Let's just forward the hour.
Matrix cameo
"Wow, that just crazy." They all said at the same time as D.S. whack them back with the forget hammer. "I should have known."
Christmas Special
"How did you mess up the story?!" "It's not our fault there more than one favorite!" *whack* "SHUT UP!"