Super Defense Force (Derp Test) - fighting game

Super Defense Force (Derp Test) is a free online flash game of the category fighting games.

Save the world from under the attack of deadly robot army! 3 characters to smash the face and bring the justice. Control with S,D,F and Arrow Key buttons. Survive as long as you can, and get the highest of scores.

F = Jump. D = Attack type A. S = Attack type B. P/Shift = Pause.
>> = Dash; possible in midair.
<+S/D = Back Attack.
S/D))) = Hold to charge attack

A context menu should be shown when right-clicking or, on touch devices, long-pressing in the game. This menu especially allows to play in full screen and control the volume.