Sonic Adventure Cheats For Xbox 360

Unlockables

Avatar Awards

Unlockable	How to Unlock
Sonic's Hi-Speed Shoes	Play for 10 hours
Vintage Sonic Tee	Play for 5 hours

Character Unlock

Unlockable	How to Unlock
Metal Sonic	Get 130 Emblems (Must have DX DLC)

Unlock Characters

Unlockable	How to Unlock
Amy	Talk to her in the Casino as Sonic after finishing Sky Chase.
Big	Defeat Chaos 6 as Sonic.
E-102 Gamma	Defeat Gamma after finishing Sky Deck as Sonic or Tails. An alternate way to unlock him is to finish Twinkle Park as Amy and watch the FMAs after it.
Knuckles	Defeat him after finishing Ice cap as Sonic or Tails.
Miles Tails Prower	Finish the C mission of Emerald Coast action stage as Sonic.
Super Sonic	Finish the game as Sonic, Tails, Knuckles, Amy, Big and E-102 Gamma. Super sonic will be avaliable only in Adventure Mode.
Metal Sonic	Get 130 Emblems (Must have DX DLC).

Upgrades

Unlockable	How to Unlock
Ancient Light (Sonic)	On top of a rock on Angel Island
Booster (E-102)	In the Weapon's Armory on the Egg Carrier
Crystal Ring (Sonic)	Walk up the steps in the hotel, press the two buttons and use light speed dash
Fighting Gloves (Knuckles)	On a ledge over Big's house
Jet Anklet (Tails)	In a hole in the ceiling in the sewer behind Twinkle Park
Laser Blaster (E-102)	In the Restricted room on the Egg Carrier after it crashes
Life Belt (Big)	In the entrance to Icecap
Light Speed Shoes (Sonic)	Find it in the sewer (not the onebehind Twinkle Park)
Long Hammer (Amy)	Beat your own high score on Hedgehog Hammer after the Egg Carrier crashes
Long Rod (Big)	Under the bed at Big's hut
Lure Upgrade 1 (Big)	In the sewer behind Twinkle Park
Lure Upgrade 2 (Big)	Under an sheet of ice in IceCap
Lure Upgrade 3 (Big)	In a cave in the forest
Lure Upgrade 4 (Big)	In one of the jail cells on the Egg Carrier
Rhythm Badge (Tails)	In the flashback with Tikal
Shovel Claw (Knuckles)	In the tunnel inside the tunnel where you find the cart to the Mystic Ruins Chao Garden
Warrior Feather (Amy)	Beat Eggman's high-score on Hedgehog Hammer

Easter Eggs

While playing with Sonic in Casinopolis, go to the pinball game with the NiGHTS motif. Hit the three little purple point givers in order to open up an entrance at the top of the board. Then make your way through and you'll now be in another NiGHTS motif pinball game. Whenever you fail to catch Sonic with the bumpers Sonic will be transported through a world very familiar to the NiGHTS level Splash Garden.

Achievements

Achievement	Description
Amy Rose (10)	Become friends with Amy.
Big the Cat (10)	Become friends with Big.
Chao's Best Friend (20)	Get all Emblems of the Chao Race.
E-102 "ƒÁ" (10)	Become friends with E-102.
Knuckles the Echidna (10)	Become friends with Knuckles.
Metal Sonic (15)	Get all 130 Emblems by playing Sonic Adventure DX.
Metal Sonic Master (15)	Get Level A on all the Action Stages by using Metal Sonic.
Miles "Tails" Prower (10)	Become friends with Tails.
Mission All Accomplished (20)	Clear all 60 missions.
Sonic the Hedgehog (10)	Clear the Sonic story.
Sub Game Master (20)	Get all Emblems of the Sub Games.
Super Sonic (20)	Clear all characters stories.
The Adventurer (20)	Get all Emblems in the Adventure Field.
The Fastest & Strongest (20)	Get Level A on all the Action Stages.
The Perfect Adventurer (40)	Get all 130 Emblems.