Skip to content
Part 31
Mario & Luigi: Bowser's Inside Story

Part 31

Follow this guide to complete Part 31 of Mario & Luigi: Bowser's Inside Story, including the Junker boss fight and all collectible locations.

By ···10 min read·Multi-source verified
1 reading this guide  

Follow this guide to complete Part 31 of Mario & Luigi: Bowser's Inside Story, including the Junker boss fight and all collectible locations.

Walkthrough
  1. 1
    Go west. Continue along the wall westward to the 100-Coin ? block and further west to the next area.
  2. 2
    Fall from the wall onto the eastern side of the bushes. Go to the top of the screen to find a Special Bean. Drill underneath the bushes via the gap to the west side, then go further south to find a Power Bean. Go back through the bushes' gap and south to a block. Use it to ascend to the bushes' tops, then go around and open up the ? blocks to find 100 Coins, two Ultra Mushrooms, and a Supersyrup Jar. Jump just a bit north of the intersection of the bushes for an Attack Piece. Open the ? block for 50 Coins, then go north and through the arch.
  3. 3
    Go up the block and the bushes to the other side. Then go up the block in the southeastern corner, and east to the next area.
  4. 4
    Find a Heart Bean northeast of the southwestern statue and a Special Bean southwest of the southeastern statue. Return to the previous area.
  5. 5
    Go up the gray block and onto the bushes, then the wall. Spin Jump across the gap to the tower. Go inside and exit to the east, then continue east to the next area.
  6. 6
    Go along the path to find four ? blocks containing a 1-Up Deluxe, 50 coins, four Ultra Mushrooms, and a Max Nut. Return to the previous area and re-enter this area by going to the upper level. Continue east and hit Mario with the hammer, then go into the gap.
  7. 7
    Go west to find a 50-Coin ? block. Follow the wall to find another with a Max Syrup Jar inside. Jump over the wall and head to the northwestern and northeastern corners to find 500 and 100 Coins, respectively. Return to the wall and stand in the lowered part. Jump onto the raised brick east of it, then go east two more. Jump to find another Attack Piece, then take the northeastern exit to the next area.
  8. 8
    Grab the Star Candy and the Socks. Go west one area, south one, deshrink Mario and go west two, and south one (out of the tower).
  9. 9
    Head to the southwestern corner to find a Heart Bean and a Special Bean. Then head north and drill beneath the gap and go north to the next area.
  10. 10
    Ascend the blocks and inflate Mario. Jump to the top of the pillars in the area and jump on one to find the final Attack Piece. Drop down from the pillar and go west to find a 50-Coin ? block, then go south to the previous area.
  11. 11
    Go west to find another Heart Bean, then drill through the gap as before to the previous area.
  12. 12
    Re-ascend the gray blocks, and then Spin Jump to a pillar on the right, then do so again to get to the tower, then exit it to the east. Find the DX POW Gloves and a Max Syrup Jar in the ? blocks, and a Heart Bean and a Power Bean in the southwestern corner of the platform.
  13. 13
    Return into the tower, and leave it to the south. Drop to the ground and go north onto the platform, and further north to the next area.
  14. 14
    Get off of the platform and ascend the yellow steps. Spin Jump east a few times, then Spin Jump north to the bush. Walk east to find two ? blocks, one with a Retry Clock, and the other with 10 Coins. Go east and south one area.
  15. 15
    Jump onto the block and into the hole. Find a 100-Coin ? block. Jump down from the wall, then head east to the statues. Walk between them and go south to the next area.
  16. 16
    Go to the 500-Coin ? block. Go one area east, one north, and one west. Then head northwest into the tower. Save there and leave to the north.
  17. 17
    Drink some water spewing from the pipe and extinguish the flames to make a whirlwind appear. Jump onto the nearby platform, then Spin Jump to the east. Before going to the next area, restore HP/SP, then go to the next area.
  18. 18
    After a scene, you'll fight the boss Junker.

Boss: Junker

  • HP/C. Medal: 1,445 / 2,167
  • EXP: 6,000
  • Coins: 900
  • Item Drops: Special Gloves, Max Nut
  • Attacks: Thwomp (Jump to delay movement and dodge), Garbage Toss-and-Tackle (Jump over), Garbage Bin (Jump over all but Cheep Cheep).
  • Notices: The boss may toss Luigi into one of the Trash Bins. Keep track of which one Luigi went into and defeat it!

Sub-Bosses: Trash Bins

  • HP/C. Medal: 105 / 157
  • EXP: 0
  • Coins: 0
  • Item Drops: None.
  • Bin Contents When Emptied: Chain Chomp (Hammer counter), Dead Fish (Hammer counter), Nooz (Watch carefully; counter with hammer).
  • Actual Attack: Tackle (Pull out your hammer when it is close. You'll learn why...).
Tips
  • Collect all 5 Attack Pieces to obtain the Special, Falling Star.
  • Be sure to defeat the Trash Bins after Luigi is thrown into them.
  • Save your game before the boss fight.

100% Human-Written. AI Fact-Checked. Community Verified. Learn how AntMag verifies content