Junker, or the "Super Ultra Great Mega Trashy Monster Junker Bot" as Midbus calls it, is a trash can-like robot that appears in Mario & Luigi: Bowser's Inside Story and its remake, Mario & Luigi: Bowser's Inside Story + Bowser Jr.'s Journey. It is fought as a boss in Peach's Castle Garden.
As Mario, Luigi and Starlow search for a way inside Peach's Castle, they find an area of the garden filled with nothing but trash. Soon after, Midbus appears, claiming they will go no further. As Starlow dares him to fight the group, Midbus refuses, saying that the Dark Star will awaken soon. He then pulls out a remote control and uses it to activate Junker, which springs to life from the garbage nearby. Midbus commands Junker to attack the Mario Bros. and Starlow, but it simply stands idle for a few seconds before stopping and closing its eyes, then dancing when Midbus tries to control it again. This enrages him into smashing the remote, which causes Junker to go haywire and finally attack Mario and Luigi on its own as a satisfied Midbus leaves.
After its defeat, Junker begins to malfunction again and rampages through the trash, finding and throwing over the safe Bowser was captured in (which destroys it and frees him). It then runs offscreen through another pile of trash, destroying itself. This opens the path to a room containing a pipe connected to the Pipe Yard, allowing the brothers to re-enter Bowser's body. Junker's parts can be found in a pile here; past this room, a ! Block can be found that opens a shortcut through the garden. Additionally, a stronger version called Junker X can be fought in The Gauntlet.
Before each of Junker's turns, some Junker Cans will enter the battle behind it; Junker uses these cans in some of its attacks, and they are automatically defeated once the boss is taken out. Like most bosses in the remake, Junker gains the Fury status after losing half its HP, and begins attacking multiple times per turn.
One of Junker's attacks has it throw a bucket over either Mario's or Luigi's head (in a reference to the Super Famicom game Mario & Wario); they begin to blindly walk left and right while Junker pulls out Thwomps and throws them over the impaired brother. Pressing Mario or Luigi's corresponding button while they walk causes them to jump in place, and must be used to prevent them walking under the Thwomps as they try to land on them. The attack continues until either the target brother is hit (which may render them dizzy) or Junker stops throwing Thwomps and the bucket falls off.
Junker can also walk towards Mario or Luigi and throw a ball of metal scrap at them; dodging by jumping has them land on top of the scrap ball as Junker throws a larger one at them. If this one is dodged as well, Junker prepares to ram through the scrap ball; Mario or Luigi must jump a third time to avoid being knocked off the ball of scrap and taking significant damage.
Junker sometimes picks up one of the Junker Cans and empties its contents; this includes enemies that attack Mario or Luigi. Junker looks at the target brother before shaking out each item, most of which can be dodged by jumping.
Once emptied, the Junker Can is removed from battle; in the original, Junker will simply toss it away, while in the remake the the empty can is thrown at Mario or Luigi, which can also be avoided with a jump.
Junker can also incapacitate Luigi by tossing him into one of the Junker Cans. In the original version, this attack cannot be avoided; in the remake, Junker will use a suction attack that Luigi can escape by pressing repeatedly. If captured, Junker tosses Luigi behind him into the Junker Can; sometimes he may hit the rim instead and return to his original position. While Luigi is trapped, Mario cannot use Bros. Attacks or multi-targeting items, and if he is defeated, the can then drains Luigi's HP to 0 and KOs him as well, resulting in a Game Over. Defeating the Junker Can holding Luigi frees him; after enough turns, Luigi may escape on his own. The Junker Cans occasionally shuffle their contents between each other, and Luigi sometimes peeks out of his can and waves at Mario.
Mario & Luigi: Bowser's Inside Story
Mario & Luigi: Bowser's Inside Story + Bowser Jr.'s Journey
Names in other languages