Treacherous Tower

The is a location and mini-game in.

Location and Rules
The Treacherous Tower is found on Death Mountain in Lorule, approximately where the Tower of Hera is located in Hyrule. It is host to a mini-game that is run by the Devilish Girl, who pits Link against several rooms of enemies. When all enemies in the room are defeated, Link is able to carry on to the next, until he reaches the end and receives his prize. There are three modes: Beginner, Intermediate and Advanced. The initial difficulty setting is Beginner, but the Intermediate and Advanced levels are unlocked after Link completes the respective difficulties preceding them. If Link can complete the levels with faster times, he will be rewarded with more Rupees.

The Beginner level contains five rooms and costs 100 Rupees to play. At the end of the fifth room, Link will receive several Rupees from the crowd for completing it. The Intermediate level contains 15 rooms and costs 200 Rupees to play. At the end of the 15th room, Link will receive several Rupees and a Piece of Heart for completing it the first time. The Advanced level contains 50 rooms and costs 300 Rupees to play. Upon initial completion of the Advanced level, Link's Lantern will be upgraded to do 8 times the amount of damage. A subsequent completion will give the young hero an upgraded Bug Net. According to the Devilish Girl, nobody has survived the Advanced level.