SpongeBob SquarePants: Battle for Bikini Bottom/Robots

In the concept art, you can see that a Robo-Squidward was originally planned to be in the game, possibly as a secret boss. This was scrapped before the game's release. But in the Game Boy Advance version, a Robo Squidward is present.
 * Fodder - Has the ability to zap you, and is also the most common robot.
 * Duplicator 1000 - Has the ability to make more robots. It is a smaller version of the Duplicatotron 3000. When smashed, it explodes in a boom that can cause harm to the player if not far away.
 * Ham-mer - Has the ability to whack you with ham. It can be confused and carried by Patrick.
 * Tar-Tar - Shoots three blobs of Tar-tar sauce at a time. Can be confused by Patrick, but cannot be carried.
 * G - Love - Spins around and can carry you. The best attack to use is bubble bounce, slam, or lasso.
 * Chomp - Burps at the player.
 * Bomb-Bot - This nuisance follows you around and explodes after a certain amount of time.
 * Arf - A large cowboy robot that has a doghouse which dogs come out of.
 * Duplicatotron 3000-is the machine where all the robots come from. According to Plankton, he had the name copyrighted.
 * Robo-Sandy-is the first robot boss in the game. Her main attacks are a karate chop, a large jump(which for some reason stuns itself), and a clothesline move(the move can avoided by jumping or by going to the edges of the arena).
 * Robo-Patrick-is the second robot boss in the game. His main attacks are spitting moves, frezze breath, ice cream slams, and a spinning move(that leaves the robot vulnerable).
 * Robo-SpongeBob-is the third robot boss in the game. His main attacks are a large arm swing, karate slams(that flip the platform you're on), and a KA-RA-TE three part sweeping attack. According to Robo-Plankton, they were supposed to be married.
 * Robo-Plankton-is the final boss of the game. His main attack is a ray beam. According to himself, the robots have always been obeying him through the entire game.

Also in the GBA version, King Jellyfish, Prawn, the Flying Dutchman, and Robo-Plankton are not present. Robo-Squidward is the penultimate boss, and Robo-SpongeBob is the last boss.