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There is an episode in Ghost Stories where, in the english version, the whining kid and the perverted kid (I'm not good with names) are playing Dark Cloud.

Puni Puni Poemy, the whole TWO episodes where pretty funny, just because they make fun of all the things that anime does, epscially the Asau sisters, with all their Anime girl stereotypes.

Also FMP Fumoffu and Excel Saga, but those were stated above.