Gun x Sword-san
Genres: Action, Avant Garde
Type: Special, Episodes: 13
Aired: Oct 21, 2005 to Oct 25, 2006
Studio: AIC ASTA
Source: Unknown
Rating: PG-13 - Teens 13 or older
Synopsis:
These are a series of 13 omake episodes of Gun x Sword, tied in very loosely to the plot, with the characters as chibi puppets. The main characters are Wendy and her turtle, Kameo, who is the size of a human in this series and is able to talk. All the episodes seem to center around analyzing various events in Gun x Sword and mocking the themes displayed.

They are included on the DVDs.

(Source: Wikipedia)