Banana

Banana is a Halloween costume for Coffee Cookie featured in Halloween Party events. It was first usable during Halloween Party 2014 and returned in Halloween Party 2015 and Halloween Party 2016. However, after the event period, the costume would no longer be accessible.

It is simply Coffee Cookie in a banana suit. That's really it.

Unfortunately, like many other Halloween Party costumes, this costume is completely inaccessible in any other Cookie Run game and it is currently not known if it will ever make an appearance again, as Cream Cookie has yet to make any new appearances in a Cookie Run game.