Pet Bat

Bats are pets that were first released in October 2011. They disappeared in November 2011. In April 2012 they came back in the Spooky Party. Then, they disappeared again, to be found in the Haunted Forest Party in October 2012. When the hidden bat in the wall is clicked the Bat Pet Finder was opened. When clicked they fly towards the screen looking like it will come out,  then suddenly flies back to its owner. This makes the bat momentarily have the largest pet sprite on the game.