The Pig-O Game 13 was available from June 25th, 2012 until July 02nd, 2012. The 13th Pig-O Game cost 16 cash per Token. If the player found all 6 regular items, they were rewarded with a bonus 7th item (the Tarsier).
With this game players got a free token.
Malay Eagle Owl
Giant Soft-shelled Turtle
Grey Angora Rabbit