Brobot is Mr. L's giant robot in Super Paper Mario. Its name is a portmanteau of "bro" (a slang word for "brother") and "robot". He was created in the image of Luigi's head. It is the Super Paper Mario equivalent of the Magnus von Grapple robot found in Paper Mario: The Thousand-Year Door.
After Mr. L loses to Mario and his team in combat, he summons his giant robotic "brother" and fights Mario's team in a battle oddly similar to scrolling space shooters such as Gradius. Once he loses, Mr. L vows to face Mario again. He has kept his promise, for he comes back in Chapter 6-1, after Sammer's Kingdom gets destroyed by The Void. His new improved Brobot L-Type has arms and legs this time and is much powerful and able to swallow Mario and fire rocket punches at him. However, Mario uses Boomer to destroy Brobot.
Brobot's 255 HP may be a reference to the data storage abilities of classic consoles. It is also the largest amount of HP in the game (tied with Dark Muth as the highest HP in the game besides Shadoo), even more than its improved version. However, this is countered by the fact that Squirps' laser rapidly delivers large amounts of damage.
In battle, Brobot fires homing missiles and straight shots at the party. The missiles can be destroyed by shooting them. Brobot also fires lasers from his eyes, but they can be dodged by flipping. He can open his mechanical mouth wide and inhale to try and suck Mario in, then chomps on him. During the battle, Choco-bars will float by. The player can get them and use them in his or her advantage. There are five different colors, and each color has a different effect. Red ones will increase the player's Attack power by 1, yellow ones will make the player faster, green ones will allow the player to shoot missiles for a short time, blue ones will create a barrier that will nullify all of Brobot's damage and purple ones will have the player shoot two Squirps rays at once.
Brobot L-type has very similar maneuvers, as well as the abilities of stomping and grabbing. If the player places Boomer in range of his inhale attack, the Pixl would be sucked inside and explode, dealing a hefty amount of damage, similar to a Shlurp.
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