Cheat Codes:Sonic Adventure DX: Director's Cut

Cheat Codes

These are cheat codes for Sonic Adventure DX: Director's Cut which can be accessed by inputting button sequences or by various other methods.

Multiplayer in Game Gear games: Press Start on the second controller and a second screen will appear. If the game is multiplayer it will go into multiplayer mode, if not it will be two seperate gameplay sessions.

Mission Mode: Complete Adventure mode with each character.
Then, Mission Mode will be unlocked and playable for that character via the Main Menu.

E102 Gamma : Beat E102 Gamma with Sonic or Tails.
Super Sonic: Beat Sonic's Tails' Knuckles' Amy's E102 Gamma's and Big's stories.
Big: Talk to Big in Station Square.
Amy: Beat Windy Valley with Sonic.
Tails: Beat Emerald Coast with Sonic.
Knuckles: Beat Knuckles with Sonic or Tails in story mode.
Metal Sonic: To play as Metal Sonic in SADX, get all 130 emblems, you will be able to play with Metal Sonic in all of Sonic's levels in trial mode.

The unlockables listed at gamefaqs gives two different emblem amounts so the number may or may not be correct.

Tails Adventure : Collect all 130 emblems and complete all 60 missions.
Dr. Robotnik's Mean Bean Machine: Get 120 Emblems.
Sonic Triple Trouble: Collect all 130 emblems.
Sonic Spinball: Get 80 emblems.
Sonic the Hedgehog: Get 20 emblems.
Sonic the Hedgehog 2: Get 110 emblems.
Sonic Chaos: Collect 60 emblems.
Sonic Drift: Get 40 emblems.
Sonic Drift 2: Collect 130 emblems and have beaten at least 20 missions.
Sonic Blast: Collect 130 emblems.
Tails's Sky Patrol: Get 120 emblems and complete 40 missions.
Sonic Labyrinth: Either get 100 Emblems or 80 Emblems and Complete 20 missions.