All Webkinz come with a tag (sealed in a plastic case) which has a code for online play on the Webkinz site. I've never made an account or used it myself so I don't know exactly what that does, but both of my nieces *love* it and have been very firm with me about the importance of that tag. These plushes are useless to them without the code so I figured it was probably worth pointing out in the listing.