Aegis Cave

Aegis Cave (Japanese: ばんにんのどうくつ Watchman's Cave) is a Dungeon which appears in Pokémon Mystery Dungeon: Explorers of Time & Explorers of Darkness and Pokémon Mystery Dungeon: Explorers of Sky. The dungeon is split into four different sections, each one containing a different legendary Pokémon.

Upon entering the dungeon with Team Charm, the player meets numerous Unown and beating some of them gains the player a stone, with the Unown's letter on. To get into Regice's room, the player needs the I, C and E stones. To get into Regirock's room, the player needs the R, O, C and K stones. And to get into Registeel's room the player needs to obtain the S, T, E, E and L stones. After defeating three legendary golems, the teams can go through Aegis Cave and battle with Regigigas along with 4 Hitmonlee and 4 Bronzong.