How to beat the first boss: Plankton's robot will start by launching little robots on to the player's platform - destroy them by shooting at them. Then Planktons robot goes into the air. You will then see a white circle on the platform and this will indicate where Plankton's robot will land - then go out of the circle. When Plankton's robot lands on the platform and goes back into the air, shoot at its eye then it takes damage. Repeat the pattern.