Bighero io

Bighero.io is a multiplayer action game where when you kill someone they turn into dots of nourishment. The game is played by pressing the space bar to swing your sword and the mouse to move around.

Players are grouped into teams of two or three, and are given a set amount of time to hunt for orbs before they turn into the other team's color. With each kill, players also regain their own team's orbs.