Sheldon J. Plankton has a robot carolers army coming towards the Krusty Krab in winter. Help SpongeBob protect the Krusty Krab. The gameplay is an overview perspective of SpongeBob is standing at the top roof of the Krusty Krab while robot carolers are coming to the building in all kinds of directions. Use your mouse to control SpongeBob's aim and click to throw snowballs. Throwing snowballs at robot carolers will knock them out into the snow ground. Try to prevent any robot carolers from getting inside the Krusty Krab building. At first, it only takes one snowball to knock out each individual robot. But when the game progressively gets harder and different types of robots appear, it takes more than one snowball to knock them out. There are power-ups in the game to help you. When a power-up picture appears, throw a snowball at it to use the power-up. The Electromagnetic Pulse power-up is a jellyfish that will eliminate caroling robots on 1 side of the screen. The Gary Time power-up will slow down the robots for 20 seconds, making it easier to knock them out one by one. The Super Snowball Thrower power-up is a Reef Blower that can throw faster and more rapid snowballs. However, the Super Snowball Thrower power-up only lasts temporarily. Tap your spacebar to initiate a snow blizzard to clear the screen of caroling robots. At the start of the game you are given only 3 snow blizzards to use, but you can get more by touching the Snow Blast power-up. Plankton is shown with a remote controlling the robot carolers through a magnifying glass in the left bottom of the screen. When robot carolers get inside the Krusty Krab, a noise meter on the right bottom of the screen starts filling up. The Krusty Krab gets louder as more caroling robots go inside the building. The Noise Reducer power-up will reduce the number of noise in the Krusty Krab. If the noise meter becomes full, it's game over. The player can also quit the game by going to the menu and pressing the quit button.