|Old localizations||Final key|
|Found in||Dragon Quest III|
Dragon Quest IV
Dragon Quest V
Dragon Quest VI
Dragon Quest VII
Dragon Quest VIII
Dragon Quest IX
|Sell for||Cannot be sold|
The Ultimate Key is a recurring magical item that can change it's appearance to fit any possible lock. It is necessary to advance the later stages of a game's story, usually by opening a jail door.
Types of Doors
The final key opens all the types of doors in Dragon Quest III. This includes thief doors (yellow, plain), magic doors (silver, ornate), and final doors (grey, prison-like). As the final key opens all 3 types of doors, it renders the other key types obsolete.
The Final Key is found at the Final Key Shrine, which requires a mini-quest to be completed in order to enter the shrine.
Acquiring the final key is one of the first major tasks the player must accomplish after receiving the ship in Portoga. It requires visiting at least 3 separate locations.
The castle is guarded so that outsiders may not enter by normal means. By using and invisibility herb, the hero's party can sneak by the sentries guarding the entrance. Inside, there is a boulder puzzle located on the second floor which must be solved. The player must push three boulders around water hazards into a straight line on the north wall. After successfully completing the puzzle, the hero is rewarded with the Bottomless pot.
North Central Sea and Final Key Shrine
In the north central sea (just north of where the two peninsula cross each other), there is a small grouping of shoals in a 'T' pattern. By guiding the ship adjacent to the south center shoal, the hero can use the Vase of Drought to raise the Final Key Shrine. Inside the shrine, the final key is located inside a chest.
The Ultimate Key is found at Cathedral of Light.