| Achievements |
Complete the following achievements to unlock Xbox Live Gamerscore points.
| Achievement | How to unlock |
| Blue Phantom (20 points) | Super Sonic Obtain the all moves.
| | Dark Hero (50 points) | Meet all the requests with magnificent skill.
| | Elite Agent (40 points) | Complete all the tasks given as agent.
| | Gold Medalist (50 points) | Collect all the Soleanna legendary Gold Medals...
| | Legend of Soleanna (100 points) | Overcome all trials and accomplish a great feat.
| | Nights of Kronos (60 points) | Unlock the complete ending to the last hidden story.
| | One To Reach The End (20 points) | End the last hidden story.
| | Psychic Soldier (20 points) | Obtain all the power to save the future world.
| | Shadow Episode - Cleared (30 points) | Clear Shadow Episode.
| | Shadow Episode - Completed (40 points) | Clear unlocked Shadow difficult level mission.
| | Shadow Episode - Mastered (60 points) | Clear all unlocked Shadow ACT Missions with Rank S.
| | Silver Episode - Cleared (30 points) | Clear Silver Episode.
| | Silver Episode - Completed (40 points) | Clear unlocked Silver difficult level mission.
| | Silver Episode - Mastered (60 points) | Clear all unlocked Silver ACT Missions with Rank S.
| | Silver Medalist (50 points) | Collect all the Silver Medals scattered around Soleanna...
| | Silver The Liberator (40 points) | Solve all the mystery in Soleanna.
| | Silver The Savior (50 points) | Reveal all the secrets with your ultimate power.
| | Soleanna's blue wind (50 points) | Solve all the problems swiftly.
| | Soleanna's Hero (40 points) | Solve all Soleannans' problems.
| | Sonic Episode - Completed (40 points) | Clear unlocked Sonic difficult level mission.
| | Sonic Episode - Mastered (60 points) | Clear all unlocked Sonic ACT Missions with Rank S.
| | Sonic Episode - Cleared (30 points) | Clear Sonic Episode.
| | Ultimate Life Form (20 points) | Resurrect the ultimate power from the lost memory.
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| Audio Room Music |
Complete the indicated episode with a 100% rank to unlock the corresponding theme in the Audio Room.
Elise's Theme: The Last Episode.
Shadow's Theme (All Hail Shadow): Shadow's Episode.
Silver's Theme (Dreams of An Absolution): Silver's Episode.
Sonic's Theme (His World): Sonic's Episode.
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| Blue Phantom (20 Points) |
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Super Sonic Obtain the all moves.
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| Crystals |
The crystals that can be obtained at the shop have the following functions.
Dark Blue: Speed.
Green: Make a tornado.
Light Blue: Make a mega jump wherever desired.
Purple: Shrink yourself and multi jump.
Red: Slow down time.
White: Control the direction of your homing attack.
Yellow: Attract rings.
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| Dark Hero (50 Points) |
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Meet all the requests with magnificent skill.
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| Defeat Final Boss Easily |
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Note: this is for Sonic's final boss. Make sure you have the white and red gems. When the boss battle starts grab the rings right in front of you then get back to the middle, jump, and use the white gem and stay there until he charges and then release. Ram him into the falling whole debree. you will be thrown off. Do it again. The third time he will shoot at you while he is moving. rotate the camera so that it stays behind eggman and stop when you see a red dot. Now use the red gem to slow down time so you can get out of the way of it. then swap back over to the white gem and do the hover then hit bit that you did the first 2 times. now swap back to the red gem so that you can slow down time when he does the target laser. go back to the white gem. when he puts out the laser mechs use a homing attack then hit him with the white gem. he will not be able to do any more damage to you befor you kill him because you can just hit him repeatedly and he can't move. it's so easy.
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| Defeating Big Enemies Faster |
When facing an enemy that requires more than one hit, then use your Homing Attack on it then use your Bounce Attack. Note: You must first have the Bounce Bracelet.
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| Defeating Silver |
When you fight Silver as Sonic, first do a slide move into him as he is falling from the sky. Then, collect a ring and run around until you hear "How bout this?" and do a homing attack on him. Run away again until you hear "How bout this?" again and do another homing attack again. Repeat this until he has been defeated.
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| Defeating Solaris |
First, use Silver to weaken him until his first arm guard falls off. Then, switch to Shadow and hit him with the beams until his second arm guard falls off. Next, use Sonic to defeat the rest of his first form. Then, just use all three to survive the blows of lasers, and continuously attack.
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| Elite Agent (40 Points) |
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Complete all the tasks given as agent.
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| Extras Menu |
Successfully complete Sonic, Shadow, or Silver's Story mode 100% to unlock the "Extras" option at the main menu with "Audio Room" and "Theater Room" options.
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| Float Into The Air |
When in Soleona, go on top of a metal box in the military base portion of the map. Stand on top and keep tapping X. If done correctly, you will start going into the air. The longer you tap X, the higher you will go.
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| Free Mode |
Get an "S" rank on all of Sonic's, Shadow's, and Silver's levels, Bosses, and town missions.
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| Go Outside Boundaries When Fighting Silver |
Play as Sonic in Story or Trial mode. Select the Silver Boss battle. Get as many rings as possible (fifteen). Then, go to the alley in the corner. Try to get as far into the corner as possible. When Silver uses his levitation technique, try to get back in the corner. Silver will try to use the levitation technique again. The rings will be behind you. You should be able to collect the rings before hitting the wall and dieting. Then when you hit the wall, try to collect your rings. You will then go outside the level's boundary. You will be able to walk on invisible bridges and hit other invisible things. Silver might even also get out of the level boundary and throw you out of Soleona and you will keep flying forever.
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| Gold Medalist: (50 Points) |
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Collect all the Soleanna legendary Gold Medals.
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| Have Blaze In Barrel |
Select Sliver from the Episode selection menu. Note: This works better if you have completed Sliver's mode. Walk to the part of the pier from where as Tails or Sonic you travel to Wave Ocean. Next to the building should be a barrel with no cover. If desired, go inside. This makes it easier to get Blaze in. After a few attempts of spinning in circles, Blaze should come in. If you are near the edge of the barrel, use Psychokinesis and you should see Silver's head pop out of the barrel. If you have a lot of patience, you can get Blaze to be in the barrel and Sliver on top after fooling around with it.
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| Last Episode |
Complete Sonic's Episode, Silver's Episode, and Shadow's Episode.
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| Legend Of Soleanna (100 Points) |
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Overcome all trials and accomplish a great feat.
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| Longer Jumps With Silver |
Jump with Silver by pressing A, then press the same button again while in mid-air. This makes Silver float around. When floating in mid-air, tap A while moving in any direction instead of holding the button down. This will make Silver jump further.
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| Mini Sonic |
Select multi-player mode and choose Battle mode. Select Silver and Sonic and go to any level. Get to the first checkpoint and have Sonic fall and appear at the checkpoint. However, do not move him. Then, make Silver fall and appear at the checkpoint. Just when Silver appears, freeze Sonic. When he is frozen he appears very small.
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| Nights Of Kronos (60 Points) |
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Unlock the complete ending to the last hidden story.
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| One To Reach The End (20 Points) |
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End the last hidden story.
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| Play As Shadow The Hedgehog |
Successfully complete Crisis City as Sonic.
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| Play As Silver The Hedgehog |
Win the Silver The Hedgehog Boss battle as Sonic.
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| Psychic Soldier (20 Points) |
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Obtain all the power to save the future world.
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| Shadow Episode - Cleared (30 Points) |
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Clear Shadow Episode.
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| Shadow Episode - Completed (40 Points) |
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Clear unlocked Shadow difficult level mission.
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| Shadow Episode - Mastered (60 Points) |
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Clear all unlocked Shadow ACT Missions with Rank S.
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| Sideways Jump |
Select Sonic from the Episode selection menu. Note: this works better if you have completed Sonic's part. Go to the building that is part of the Desert Stage (not the place where the Transportation Mirror is located). On the opposite side of the mirror, there should be a wall. Use the "Sliding" technique to get under the wall. While Sonic is landing on the roof, Sonic should do a sideways spin instead of a normal one. Note: This may not work every time.
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| Silver Episode - Cleared (30 Points) |
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Clear Silver Episode.
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| Silver Episode - Completed (40 Points) |
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Clear unlocked Silver difficult level mission.
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| Silver Episode - Mastered (60 Points) |
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Clear all unlocked Silver ACT Missions with Rank S.
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| Silver Medalist (50 Points) |
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Collect all the Silver Medals scattered around Soleanna.
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| Silver The Liberator (40 Points) |
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Solve all the mystery in Soleanna.
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| Silver The Savior (50 Points) |
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Reveal all the secrets with your ultimate power.
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| Soleanna's Blue Wind (50 Points) |
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Solve all the problems swiftly.
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| Soleanna's Hero (40 Points) |
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Solve all Soleannans' problems.
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| Sonic Episode - Cleared (30 Points) |
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Clear Sonic Episode.
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| Sonic Episode - Completed (40 Points) |
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Clear unlocked Sonic difficult level mission.
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| Sonic Episode - Mastered (60 Points) |
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Clear all unlocked Sonic ACT Missions with Rank S.
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| Ultimate Life Form (20 Points) |
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Resurrect the ultimate power from the lost memory.
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| Unlimited Jump |
There is a glitch in the purple gem you can purchase at the market. The purple gem allows you to "change size" in the description, shrinking you down to fit in small areas. However when using the gem for Sonic you are able to jump infinitely. When you press Jump while holding Activate Gem and repeatedly tap A, your character will act as if he wants to do the homing attack. However the game glitches, cancels it out, and allows you to jump as many times as desired while moving in the direction you wish to go. This allows you to get to interesting parts of Soleena or an action stage that you were not meant to access. If you die or find a alternate way to lose the gem it will be "out of stock" for some time.
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| Unlock Amy Rose |
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All "S" Ranks on Soleana mystery missions.
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| Unlock Audio Room |
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Complete Sonic, Shadow, or Silver's story 100%.
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| Unlock Blaze The Cat |
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Pass all Soleana mystery missions.
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| Unlock E-123 Omega |
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All "S" Ranks on GUN Commander missions.
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| Unlock Knuckles The Echidna |
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All "S" Ranks on Town Stage missions.
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| Unlock Last Episode |
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To Unlock the Last Episode, beat Sonic's Episode, Silver's Episode, and Shadow's Episode.
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| Unlock Miles "Tails" Prower |
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Pass all Town Stage missions.
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| Unlock Rouge The Bat |
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Pass all GUN Commander missions.
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| Unlock Shadow The Hedgehog |
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Complete 'Crisis City' with Sonic.
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| Unlock Silver The Hedgehog |
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Complete 'Silver The Hedgehog' boss battle with Sonic.
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| Unlock Theater Room |
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Complete Sonic, Shadow, or Silver's story 100%.
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| Unlock 'Extras' Menu |
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Complete either Sonic, Shadow, or Silver's story 100% to unlock the Extras menu on the main menu.
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| Vanishing Mirrors |
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When your going to the final level of sonics episode, if you try to get more rings by doing other levels you will find that the mirrors of soleanna have dissapeared.
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| Very Fast Sonic |
In multi-player mode in any level or match, equip the Red Gem on Sonic, Activate it and hold it, then die. While still holding the activation button, wait till you respawn. When you respawn, deactivate the gem. You will now run ten times faster than normal. Also, the time will automatically be slow.
Use the following trick to go faster in Super Speed area. Hold the Analog-stick Up when you use a Light Dash on a line of rings and keep it held. Sonic should now be running with his hands behind his back and be moving much faster than usual. The effect lasts until you release the Analog-stick or crash.
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