The Treacherous Tower has gameplay similar to the Savage Labyrinth or Cave of Ordeals, pitting Link against a roomful of enemies and only letting him progress when all then enemies are defeated. However, once entered, Link can not leave Treacherous Tower unless he dies or emerges victorious.
Beginner Mode consists of five floors and costs 100 Rupees to play. The floors are as follows:
- Floor 1- Eight Mini-Moldorms
- Floor 2- Ten Sand Crabs
- Floor 3- Eight Octoroks
- Floor 4- Four Pink Stalfos and Four White Stalfos
- Floor 5- Moldorm
Successful completion of Beginner Mode rewards Link with 300 Rupees. Intermediate Mode is also unlocked.
If Link completes the Beginner Mode another time, and beats his previous record, the Devilish Girl rewards Link with a 50 Rupee bonus.
Intermediate Mode consists of fifteen floors and costs 200 Rupees to play. The floors are as follows:
- Floor 1- One Popo and eight Ropas
- Floor 2- Eight Chasupas
- Floor 3- Six Crows
- Floor 4- Ten Terrorpins
- Floor 5- Eight Green Sword Soldiers
- Floor 6- Eight Blue Hardhat Beetles
- Floor 7- Six Blue Archers
- Floor 8- Eight Snap Dragons
- Floor 9- Six Helmasaurs
- Floor 10- Eight Gibdos
- Floor 11- Four Ice Hinox
- Floor 12- Six Blue Zirros
- Floor 13- Seven Frozen Armos
- Floor 14- Two Green Soldiers and a Gray Ball and Chain Trooper
- Floor 15- Five Moblins and Five shielded Moblins.
Successfully completing this level rewards Link with 1,000 Rupees and a Piece of Heart when completed for the first time. It also unlocks Advanced Mode.
Completing the mode again and beating Link's previous record earns him a 100 Rupee bonus from the Devilish Girl.
Advanced Mode has fifty floors and costs 300 Rupees to play.
Link earns 5,000 Rupees for successfully completing Advanced Mode, which makes it a very efficient way to gather a lot of Rupees. After his first completion, he earns the Super Lamp. Completing Advanced Mode a second time unlocks the Super Net.
Completing the mode again after the first try and beating Link's previous record rewards him with a bonus of 300 Rupees from the Devilish Girl.