Pipe Down! is the fifth book in the Nintendo Adventure Books series.
 Plot Synopsis
The Story from the Back Cover:
Something Sinister is Afoot
When Princess Toadstool tries on a new pair of red hightopped sneakers, the shoes suddenly dash from the room with the Princess still in them. Her highness has been kidnapped by Ludwig von Koopa to star in his basketball ballet. Unless Mario and Luigi rescue the Princess, she will be doomed to a life of dribbles and dunks.
As in all Nintendo Adventure Books, you control the action. Only you can make the choices that allow Mario and Luigi to outplay Ludwig von Koopa and rescue the Princess. Help them crack codes, solve puzzles, conquer mazes, and subdue enemies. You and the Mario Bros. must outwit the Koopas at their own game-or go down in final defeat!
- Wading boots
- Cowboy boots
- Army boots
- Balloon (not shown)
- Noisemaker (not shown)
 Score Chart
- 3601 or more pts. — Supercharged Koopa-Catching Power Plumber
- 3001-3600 pts. — High Pressure Sewer Stormer
- 2501-3000 pts. — Low Pressure Pipe Patcher
- 1501-2000 pts. — Puddle Patroller
- 1500 or less pts. — Junior Drip Skipper