Just like last year with the Bear Costume, Club Penguin is running a promotion with Disneynature to celebrate Earth Month. If you redeem a special code the Monkey Costume on your penguin to wear around the island.
Here’s the slide advertising it on Club Penguin’s homepage:
You can go to Club Penguin’s special Earth Month page for more information. For every costume unlocked Club Penguin will donate 1 US dollar to improve monkey habitats, up to $50,000 – so let’s get 50,000 penguins to unlock the Monkey Costume! The code is MONKEY4U and you can redeem it by going to Club Penguin’s code redemption page.
And speaking of codes, be sure to unlock the Cocoa Bunny Ears by April 9th!