It's Patrick the Great Vs. The Mechanical Plankton. The player plays as Patrick the Great to fight against The Mechanical Plankton who is the opponent. Press the up arrow to jab, press the down arrow to block, press the right arrow to dodge right, and press the left arrow to dodge left. Press the left and then up arrow to left hook. Press the right and then up arrow to right hook. You and the opponent has a health meter at the top of the screen. The health meter which will go down when your opponent or yourself get punched. Also, you have an energy bar which goes every time you punch your opponent and the energy bar will go up if your not repeatedly punch your opponent. If the energy bar is empty, you will have to wait a few seconds to gain some of your energy back. Note that your energy bar does not go up if you stay still on the right or left of the screen. Punching the opponent enough to empty his health meter automatically gets you to the next fighting round. Keep in mind that if your health meter is down and you win the round, the health bar will only fill-up a little bit by the next round. However the opponent's health bar will be full by the next round. If the opponent punches you too much and your health meter is empty, you become K.O. and the game is over.