This Yusuf (Assassin's Creed) shimeji by sunsetagain will move around on your screen and interacts with your browser windows while you browsing the web. Install the Shimeji Browser Extension for Google Chrome and activate Yusuf to get this little Assassin's Creed character on your screen.
Read and change all data on the websites you visit...
...to insert shimejis into webpages and let them interact with elements on the page.
Communicate with cooperating sites...
...actually it is shimejis.xyz that wants to connect with the extension to activate your chosen character.
Know your email...
...to associate the chosen characters with your google account.