Narwhaleio is also one of the best online io games available on the web. You play as a narwhale in the game and tear apart other players into halves and for each opponent you kill, you earn a level as award. Narwhale is just another Io game with heck lot of players and leaderboards and all those stuffs. The game hosted above is, in fact, powered by a private server so you are going to get the best experience playing Narwhaleio.
Move your narwhale with the mouse and press LMB to quickly sprint in a direction so that you can cut other narwhales loitering around in half. Remember that other players also want to do the same with you so keep an eye out for the other players.