Temple of Light
Temple of Light (光の神殿, Temple of Light) is a sub-world found in the Light Realm within Adventure Mode in Super Smash Bros. Ultimate. It is located on the northwest corner of the map and can be entered once each of the three of the colored buttons is pressed (green in the Kongo Jungle area, pink in the Heart Pool Mountain, and blue in the Cliffside Rapids). Clearing this area will remove the light breach, allowing access to the east half of the Light Realm. The area's background music is Destroyed Skyworld.
The Spirits found here are generally associated with the mythology of their own series or are otherwise found in sky-themed areas. Spirits are ordered by when they are encountered in the sub-world.
Both fighters are mandatory unlocks to complete the World of Light. Unlocking Simon activates a teleporter to the second portion of the subworld and unlocking Pit will clear out the light obstructing the bridge to the eastern portion of the Light Realm.