Collect all 96 Battle stickers to unlock the Enemy Museum Exhibition Room.
Music Museum Exhibition Room Collect all 64 Thing stickers to unlock the Music Museum Exhibition Room.
Secret song Successfully complete the game, and once the credits finish, allow the game to idle after the book closes and the light turns off. Eventually a lullaby song will begin to play.
Megaflash sticker locations Search the following locations to find the Megaflash stickers:
- Megaflash Baahammer: In World 5-4, third floor, go through the hidden warp pipe to the right of the moving platforms in the main room.
- Megaflash Burnhammer: In World 5-5, first area, enter the secret room behind the rock near the entrance to the second area.
- Megaflash Chillhammer: In World 4-6, look on the platform in the second minecart area. Paperize the rail to reach it.
- Megaflash Clone Jump: In World 5-6, third floor, pound the stake furthest to the right.
- Megaflash Eekhammer: In World 5-4, release the raft at the start of the level by hitting the stake with the hammer, then ride it to the right.
- Megaflash Hammer: In World 2-2, look behind a secret panel below the balcony in the room with the Hammer Bros.
- Megaflash Hopslipper: In World 5-4, in the room with the Megaflash Baahammer or Megaflash Hurlhammer.
- Megaflash Hurlhammer: In World 5-1, behind the Hammer Bro. in the area with the second red flower; or in the same room as the Megaflash Baahammer.
- Megaflash Infinijump: In World 5-3, in the secret area to the right of the pillars in the room with the Comet Piece that can be reached from the "loop" in the river.
- Megaflash Iron Jump: In World 5-5, in the fifth area, under the "X" at the top of the hill. Stand on it until you see a shadow, then move out of the way.
- Megaflash Jump: In World 6-2, through the secret door in the ship's cabin.
- Megaflash Line Jump: In World 4-6, on the ledge below and to the right of where you fight the Boss (after getting the Royal sticker).
- Megaflash Slaphammer: In World 5-5, in the fourth area, under the "X" on the ground closest to the entrance. Stand on it until you see a shadow, then move out of the way.
- World 1-6: On the bridge leading to the central tower.
- World 2-5: On the fourth floor of the tower; in a window at the far right end of the second outdoor walkway.
- World 3-12: On a rock formation sticking out of the ocean; only visible from the pier.
- World 4-5: Near the end of the chairlift after the enemies stop coming; appears only briefly.
- World 5-5: In the background to the left of the hot springs.
- Surfshine Harbor: Obtained automatically.
- World 3-2: Through the dandelion in the area before the Comet Piece so that it scatters.
- World 3-6: Overlook to the left of the shop.
- World 3-8: Poisoned hot springs.
- World 3-10: Replay the game show while the segment watches; the bonus round can be skipped.