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A puzzle game based around fighting viruses in the bloodstream. Play through a single player campaign, or online vs your friends.
Use mouse, click a piece to select, then click to move.
Moving one square gives you an additional piece: if you move two, you can "jump" a square, but lose the original.
When player multiplayer, you can create your own game, or join someone elses game. If you want a private game, add a password in create game and give your friends the room number so they can click join private game.