Algodoo

Cut up your foe into tiny pieces with your powerful sword!
Blue moves left and right with A and D, moves his arm with W and S, swings his sword with F and G, and holds it still with V.
Red moves left and right with the left and right arrow keys, moves his arm with the up and down arrow keys, swings his sword with Numpad 1 and Numpad 2, and holds it still with Numpad 0.