Sky Fortress

Sky Fortress, often called SF by players, is a dungeon added in PMU 7 in Stormhold Range and later revamped into a 99-floor dungeon in Summer 2015. You must have beaten Mt. Stormhold and have a Pokémon with Fly on your team to access it. To enter one of the dungeons, you must also at least have one flying-type on your team. The bosses include Articuno, Zapdos, and Moltres. The legendary Rayquaza can also be found here.

There are three separate paths to take in Sky Fortress after floors 10, 30, 50, 70 and 90 namely the Fire Path, the Ice Path, and the Electric Path. At the beginning, you'll take the Steel Path. On Floor 20, you can take the Fairy Path. On Floor 40, you can take the Dragon path. On Floor 60, you can take the Dark Path. On Floor 80, you can take the Poison Path. On Floor 50, if you have the three orbs, you can take the route of Sky Garden.

Paths
Below are all the paths you can take in

.
 * Fire Path
 * Ice Path
 * Electric Path
 * Fairy Path
 * Dark Path
 * Dragon Path
 * Sky Garden
 * Steel Path
 * Poison Path

Dungeon Objective

 * Get the Fire, Ice, and Electric Orbs.
 * Miracle Chests are found rarely in the end-boxes, a motive for completing this dungeon.
 * Training Pokémon
 * Getting the Heart Slates of Articuno, Zapdos, Moltres, or Rayquaza for use in the Mystery Part, which allows either of these four to be summoned in a dungeon at any time.

Restrictions

 * Must have Flying-Type

Tips

 * Plan your route before taking on Sky Fortress.

Trivia

 * The bosses of Sky Fortress, along with the Mysterious Jungle boss, were given increases in stats.
 * This dungeon contained a event Flying Pikachu for the first month of it's release.
 * Prior to the revamp, Sky Fortress had 70 floors.