Have a saved game from Super Mario 3D World to unlock the "BONUS Book" option at the main menu that allows access to the bonus levels. The bonus episode "Expedition To The Sprixie Kingdom" contains the "Super Bell Hill", "Conkdor Canyon", "Shadow-Play Alley", and "Clear Pipe Cruise". Alternately, successfully complete all the main episodes to unlock the bonus levels.Prologue levels
To unlock the secret levels in the bonus book, successfully complete the book that the level is in. For example, completing Book 1 will unlock Prologue Level 1.Mummy Me Maze Forever
Collect all gems and complete every extra objective to unlock Mummy Me Maze Forever.Time Trials
Reach the 50th floor to complete Mummy Me Maze Forever and unlock Time Trials.Unlimited Coins Galore
Successfully complete the extra objective in Mummy Me Maze Forever to unlock Unlimited Coins Galore.Crown for Captain Toad
Reach the 50th floor to complete Mummy Me Maze Forever and unlock a crown for Captain Toad to wear in any level.Challenge Times
Successfully complete all Bonus Challenges and collect all gems in an episode to unlock the Challenge Times for that episode, which are special level completion times that the developers have set for each level. Beat the Challenge Times to unlock Coins Galore stages.Toad Stamps
There are a total of three Toad Stamps on the front cover of each Episode book. Successfully complete the indicated task to unlock the corresponding stamp:
- First Toad Stamp: Successfully complete the episode.
- Second Toad Stamp: Collect all gems in the episode.
- Third Toad Stamp: Successfully complete all Bonus Challenges and collect all gems in the episode.
- Glittering Stars: Have all three Toad Stamps, then beat the Challenge Times for each level.