This game is based on The king of fighters which is a very popular arcade fighting game. So far, it is considered as the best flash fighting game online. It achieved most of the elements of a fighting game, such as the smooth movement.
Player 1:
W-Up
S-Left
A-Down
D-Right
U,I,O - punch
J,K,L - kick
Player 2:
Arrow Key control direction
Num 4,5,6 - punch
Num 1,2,3 - kick