Junker X

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Junker X
An artwork of the X boss before fighting it. In this case, it's Junker.
Artwork shown before the battle in Mario & Luigi: Bowser's Inside Story + Bowser Jr.'s Journey
First appearance Mario & Luigi: Bowser's Inside Story (2009)
Latest appearance Mario & Luigi: Bowser's Inside Story + Bowser Jr.'s Journey (2018)

Junker X is the fifth boss encountered in The Gauntlet in the game Mario & Luigi: Bowser's Inside Story. Players are charged 1800 Coins to fight it and the player must beat it in 15 turns or fewer. Compared to Junker, Junker X has higher HP, power, defense and speed, and its attacks are more difficult to evade. Junker X is blue with pink details and its Junker Can Xs are brown with pink eyes.


The Junker X's trophy obtained in the Gauntlet from Mario & Luigi: Bowser's Inside Story Junker X's trophy
Junker X's trophy

In battle, Junker X has a variety of attacks. One attack consists of throwing a bucket over either Mario's or Luigi's head. The brother will then stumble around blindly while Junker X throws Thwomps at him; players must time their jumps to avoid the attack. If Mario or Luigi are hit by the Thwomp, they may get dizzy. This attack is a reference to the Super Famicom game Mario & Wario.

Another attack involves throwing two balls of metal scrap at one of the Mario Bros., then attempting to ram him. The brother in question must jump onto the balls, then jump over Junker X as it attempts the ramming portion of the attack. The big ball can be jumped on from the ground. A third attack consists of emptying the garbage from one of the Junker Cans that follow it. Often, this garbage will consist of random enemies that go after the Mario Bros, which include:

  • Cheep Cheeps, who will jump over the Mario Bros. and hurt them if they jump; the remake replaces these with Poison Mushrooms, which can additionally poison them.
  • Bob-ombs, who will first light their fuses before charging.
  • Scutlets, which will immediately charge after coming out; they are absent in the remake.
  • It will also contain useless objects like a pair of briefs and a wad of paper.

Once several enemies have attacked, the Junker Can will be discarded (thrown at a bro in the remake).

The Junker X may also choose to hinder the Mario Bros. and incapacitate Luigi by putting him into a Junker Can. Since this attack cannot be dodged, Mario will be forced to defeat the Junker Can to rescue his brother. Occasionally, Luigi will hit the rim and escape on his own; on rarer occasions, Luigi will wave to Mario while in one of the Junker Cans. After doing this, the Can's lid will slam on Luigi's hand. If he is not freed and Mario is defeated, the player will need to restart the battle. In the remake, the player can now mash B Button so that Luigi can escape Junker X's suction that puts him in a Junker Can X.


Mario & Luigi: Bowser's Inside Story[edit]

Mario & Luigi: Bowser's Inside Story enemy
Junker X
Junker X.png HP 3,080 (4,620) POW 179 (448) DEF 129 (194) SPEED 123 (185)
Coins 0 (0) Level 34 Fire Normal Burn? Immune
Role Gauntlet boss Battled by Mario and Luigi Location(s) The Gauntlet Dizzy? Immune
Stat down? Normal KO? Immune Experience 0 Item drop
Notice: The second set of numbers next to the enemy's HP, POW, DEF, SPEED and Coins are stat increases from the Challenge Medal accessory; a 50% increase for HP, DEF, SPEED and Coins earned, and a 150% increase for POW.

Mario & Luigi: Bowser's Inside Story + Bowser Jr.'s Journey[edit]

Mario & Luigi: Bowser's Inside Story + Bowser Jr.'s Journey enemy
Junker X
Junker X HP 3080 POW 179 DEF 129 SPEED 123 Experience 0
Fire Normal Jump Normal Hammer Normal Battled by Mario & Luigi Coins 0
Burn Immune Dizzy Immune Stat down 1x Speed down 1x Item drop None - 0%
None - 0%
Level           34 Location(s) The Gauntlet

Names in other languages[edit]

Language Name Meaning
Japanese ガラクタモンスターX
Garakuta Monsutā X
Junker X

German Schrottbot X
Junker X
Spanish (NOA) Hojalatoso X
Junker X
Spanish (NOE) Basuronstruo X
Junker X


  • Junker X is the only boss in the Gauntlet besides Bowser X whose original form is fought outside Bowser's body. The rest were fought inside Bowser's body.