The Unicorn only shouts your Message after receiving Unicoins - get them here:
Please Log In your Metamask Account
This Message Box is being updated directly from the Ethereum Blockchain - You can write your own Message to the world by clicking on Feed the Unicorn!
The Name and Size of the Unicorn is being updated directly from the Ethereum Blockchain. Everytime you feed the Unicorn (see button below) the Unicorn gets bigger - try it!