SpongeBob SquarePants: Battle for Bikini Bottom
=== Home console versions ===
The game revolves around the theme of robots invading Bikini Bottom, SpongeBob's hometown. Plankton, the evil genius owner of the Chum Bucket, has built a new machine called the Duplicatotron 3000 to produce an army of robots to use to steal the Krabby Patty Secret Formula. After creating them, he realizes that the switch on the Duplicatotron has accidentally been set to "Don't Obey" and the robots quickly kick him out of the Chum Bucket before taking it over and then wreaking havoc all over Bikini Bottom.
Meanwhile, SpongeBob and Patrick are playing with toy robots. SpongeBob is bored with the toys and wishes he could play with real robots. Patrick uses his "magic wishing shell", believing it will make their wish come true the following morning. SpongeBob wakes to find that his house has been trashed by real robots. He receives a fax from Mr. Krabs, stating that he would give SpongeBob a Golden Spatula for every certain amount of Shiny Objects he collects for him. Shiny Objects must be collected to open or activate various tolls throughout the game. Outside, SpongeBob finds a disappointed Plankton, who lies and claims that the robots appeared suddenly and kicked him out. Fooled by the diminutive villain, SpongeBob promises to help Plankton back into the Chum Bucket by embarking on a perilous quest to find golden spatulas and get rid of the robots.
SpongeBob travels to Jellyfish Fields, where he finds that Squidward has been stung by jellyfish. SpongeBob defeats King Jellyfish in a battle and obtains some of his jelly for Squidward's stings. SpongeBob also helps Mrs. Puff by locating stolen steering wheels in Downtown Bikini Bottom, stolen paintings in Rock Bottom, and missing students/campers in the Kelp Forest. King Neptune calls SpongeBob and Patrick to the Poseidome to defeat Robot Sandy. He then goes to the Mermalair, where he fights Prawn, one of Mermaid Man's archenemies. He also helps Mermaidman and Barnacle Boy several other times throughout the game, as well as Larry the lobster, his pet snail Gary and the Flying Dutchman, in other areas like Goo Lagoon, Sand Mountain, and the Dutchman's Graveyard, where Sandy beats the Dutchman in a fight. Later, SpongeBob and Sandy save Squidward from Robot Patrick.
SpongeBob then falls asleep, allowing him to enter his friends' dream worlds to search for more golden spatulas. After SpongeBob, Patrick, Sandy, and Squidward gain access to the Chum Bucket, they discover Robot SpongeBob and Robot Plankton, and learn that Plankton was responsible for making the robots. Before the battle starts, Robot Plankton is frustrated because SpongeBob has interfered with his plans once again. SpongeBob must destroy all the green weak points to get in his brain to finish him off once and for all. After defeating the giant robots, SpongeBob hopes that Plankton learned his "lesson". The Duplicatotron produces several more Robot Planktons, which begin arguing among themselves. The game ends after SpongeBob says that their work is not done, as there are still many robots running amok in the city.
The game then cuts to The Spongeball Arena, where the player rolls around in ball form in a large arena, while the credits roll on the screen. If the player collects all 100 golden spatulas, the game ends with a special surprise cutscene of all the game's characters singing the theme song.
=== Game Boy Advance and PC versions ===
In the Game Boy Advance version, Mr. Krabs thinks the robot invasion is putting him out of business, so his assignment for SpongeBob is to fight the robots to get into the Chum Bucket to shut down Plankton's Duplicatron with the help of Mystery the Seahorse.
At the end of the PC version, SpongeBob and Patrick discover that Plankton was the one behind the robot invasion. Plankton admits that it was his fault and that the robots are not listening to him and the only way to control the robots is to set the switch to "obey" mode. Instead, Patrick fools around with the machine, accidentally pulling its obey switch off, which turns off the machine and deprograms the robots. After SpongeBob and Patrick leave, Plankton tries to tell them that he will be back with another plan.
violence, comic