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.
9Anime is the best site to watch Gun x Sword-san
SUB online, or you can even watch Gun x Sword-san
DUB in HD quality. You can also find AIC A.S.T.A.
anime on 9Anime website.