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
- 1Use 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.
- 2After winning, the Atomic Boo drops the Lucky Start badge. Pick it up.
- 3Go through the door at the back of the room (the side with the hole).
- 4You'll find Swoopers. Defeat them using Quake Hammer to get them off the girder.
- 5Continue 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.
- 6Go back through the gap and enter the door (ignoring the ! block).
- 7In this room, Spin Jump in the center for a Star Piece.
- 8Exit the room using the other door.
- 9In this area, hit the ! block once. You'll hear some rumbling.
- 10Go back to the previous room.
- 11Climb up the stairs at the south end.
- 12In the main hall, go to the left side and grab the Steeple Key using Koops's shell.
- 13Return to the previous room.
- 14Go through the door at the back.
- 15Out here, hit the ! block twice, then return to the room.
- 16Climb the stairs again and use the door. You're back in the main hall.
- 17Go to the left, carefully crossing the gap.
- 18Use the Save Block.
- 19Unlock the door using the Steeple Key.
- 20Start by using the healing block, if needed.
- 21Begin climbing the spiral staircase.
- 22Once you reach the springboard, use it.
- 23You 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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