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Paper Mario: The Thousand-Year Door

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Guide to defeating the Atomic Boo in Paper Mario: The Thousand-Year Door, obtaining the Lucky Start badge, and navigating Twilight Town to find the Steeple Key.

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Guide to defeating the Atomic Boo in Paper Mario: The Thousand-Year Door, obtaining the Lucky Start badge, and navigating Twilight Town to find the Steeple Key.

Walkthrough
  1. 1
    Use Power Lift for three turns to boost Attack and/or Defense. Focus on Power Bouncing with Mario (unless multiple Power Jump/Smash badges are equipped). Yoshi should use Ground Pound, except on his first turn when he should use Mini Egg to reduce the Boo's Attack to one.
  2. 2
    After winning, the Atomic Boo drops the Lucky Start badge. Pick it up.
  3. 3
    Go through the door at the back of the room (the side with the hole).
  4. 4
    You'll find Swoopers. Defeat them using Quake Hammer to get them off the girder.
  5. 5
    Continue right until you see a gap in the fence. Slip through with Paper Mode and continue right to reach a tree. Hit it to receive a Golden Leaf.
  6. 6
    Go back through the gap and enter the door (ignoring the ! block).
  7. 7
    In this room, Spin Jump in the center for a Star Piece.
  8. 8
    Exit the room using the other door.
  9. 9
    In this area, hit the ! block once. You'll hear some rumbling.
  10. 10
    Go back to the previous room.
  11. 11
    Climb up the stairs at the south end.
  12. 12
    In the main hall, go to the left side and grab the Steeple Key using Koops's shell.
  13. 13
    Return to the previous room.
  14. 14
    Go through the door at the back.
  15. 15
    Out here, hit the ! block twice, then return to the room.
  16. 16
    Climb the stairs again and use the door. You're back in the main hall.
  17. 17
    Go to the left, carefully crossing the gap.
  18. 18
    Use the Save Block.
  19. 19
    Unlock the door using the Steeple Key.
  20. 20
    Start by using the healing block, if needed.
  21. 21
    Begin climbing the spiral staircase.
  22. 22
    Once you reach the springboard, use it.
  23. 23
    You emerge in the house of the ghost-like monster, the center of Twilight Town's curse. He notices you and tries to get you out.

BOSS: ?????

  • Max HP: 40
  • Attack: 4

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