Keoiki's Vault

Keoiki's Vault was a secret vault webpage hidden inside Super Geometry Dash's official website.

To access it, you had to go to the Download page, then click on the picture where the custom GD icon (Keoiki) is looking at a tablet screen with a Steam logo on it.

UI
Once entering the vault, Keoiki awaits the player, with a textbar and his voicelines above him. The player must answer his questions and make use of Keoiki's situation to obtain the 8 elemental crystals from him.

Trivia

 * Keoiki talks about Robotic finishing a new level, Polyommatus and it's achievement in one the hint segments. This referring to Polyommatus by Robotic, a level in Geometry Dash Dungeon The code for Fire Crystal is Robotic backwards, the same code used in the secret box of the old Geometry Dash Ultimate Website.
 * Keoiki tells about creating a level called "Runaway" and wanting to hear the song of the level again. With this he is referencing the song Runaway The code for the Sun Crystal is the song ID of Runaway.
 * The code of the Earth Crystal is a reference to the difference between Brittish and American ways of spelling "Colour"(UK) and "Color"(US)
 * When Keoiki wonders where he has seen Pink recently, he is referring to the fact that the old Server Mod role was colored Pink in the Discord Server
 * The code for the Light Crystal is a reference to the game "Keep Talking and Nobody Explodes"