When you log on, you get a message introducing you to the party.
There are a number of items for each penguin. The regular robber and cop suit is for members, and the Marvel Super Hero and Super Villain costumes are for members only.
You can pick up lots of free items, including a bag of cash, and a free background from the Coffee Shop!
You can also partner up with all your friends and create an epic battle that will last through Club Penguin history, I hope you enjoy the Marvel Super Hero Takeover as much as I do, waddle on!