All Hail Shadow Song 
Successfully complete the Hero story line.
All Of Me Song: Full Version 
Successfully complete the Last Story. 
Almost Dead Song 
Successfully complete the Dark story line. 
Character Choices 
In just about all of the stages you have three choices: to help the Dark side, yourself, or the Hero side whenever you have someone with you and it is not a Boss fight. To change the character you want with you, press Start. There will most likely be three selections: Dark, Neutral, and Hero. Press Left or Right to highlight a character or ring in the middle. Press A to select the highlighted character. That character will remain with you until your next run in with the other character. You can then simply press Start and do the process again. You cannot select a Hero partner if there is an 'X' over the Hero side. You cannot select a Dark partner if there is an 'X' over the Dark side. 
Another way to do this is to use the D-Pad on the controller during the game. Press Right for the Hero character, Left for the Dark character, and Down for the Neutral character. 
Chosen One Song 
Successfully complete the Semi Hero story line. 
Egg Vacuum 
Successfully complete the Neutral story line with the Hero ending. Use the Egg Vacuum to suck up 20 objects to gain an extra life. 
Expert Mode 
Get 'A' ranks in all stages in the game. 
Heal Cannon 
Successfully complete the Hero story line. 
Last Story 
Successfully complete every sixth stage in story mode, defeat all Bosses at the end all five Hero and all five Dark Bosses, and see all ten Hero and Dark story line endings. 
Level 2 Weapons 
Successfully complete both the Hero and Dark versions of a story line. 
Library Sequences 
Complete the indicated path of story mode missions to unlock the corresponding intermission sequences at the Library: 
1: Punisment, Thy Name Is Ruin: Dark, Dark, Dark, Dark, Dark, Dark, Dark final Boss 
2: Prologue To World Conquest: Dark, Dark, Dark, Dark, Dark, Dark, Hero ending 
3: The March To A Darker World: Dark, Neutral, Dark, Neutral, Hero, Dark 
5: Purification Via Ruination: Dark, Dark, Dark, Hero, Dark, Dark ending 
6: Apogee Of Darkness: Dark, Dark, Dark, Hero, Dark, Hero ending 
7: True Soldier Of Destruction: Dark, Dark, Dark, Hero, Neutral, Dark ending 
8: Believe In Yourself: Dark, Dark, Dark, Hero, Neutral, Hero 
11: Revenge At Last: Dark, Dark, Neutral, Dark, Dark, Dark ending 
15: The Nightmare's Insulation: Dark, Dark, Neutral, Neutral, Dark, Dark ending 
16: The Nightmare's Sublimation: Dark, Neutral, Neutral, Neutral, Dark, Hero 
17: The Loner's Choice: Dark, Dark, Neutral, Neutral, Neutral, Dark 
18: Subjugation IN BLACK: Dark, Neutral, Neutral, Neutral, Neutral, Neutral 
27: The Cleansing of Darkness: Dark, Dark, Hero, Dark, Dark, Dark 
45: The World's Demise: Dark, Hero, Dark, Dark, Dark, Dark ending 
48: Vainglory or Abandonment?: Dark, Hero, Dark, Dark, Neutral, Hero ending 
51: Controller from the Capsule: dark, hero, dark, neutral, neutral, dark 
52: Beyond One's Own Power…: Dark, Hero. Dark, Neutral, Neutral, Good. 
57: Transcendentalism: Dark, Hero, Dark, Hero, Neutral, Dark. 
78: Power Of Love: Dark, Hero, Neutral, Hero, Hero, Hero 
80: Walk My Way: Dark, Hero, Hero, Dark, Dark, Hero ending 
91: The Rise and Fall Of The ARK: Dark, Hero, Hero, Hero, Dark, Dark 
98: Severed Chains: Neutral, Dark, Dark, Dark, Hero, Hero. 
102: Arriving At The Ego: Neutral, Dark, Dark, Hero, Neutral, Hero ending 
105: Demise Wrought by Tragedy: Neutral, Dark, Neutral, Dark, Dark, Dark 
111: Soldier Of Grief: Neutral, Dark, Neutral, Neutral, Neutral, Dark ending 
112: Reclaimed Heart: Neutral, Dark, Neutral, Neutral, Neutral, Hero 
120: Spawn Of The Devil: Neutral, Dark, Dark, Hero, Hero, Hero ending 
121: Black Doom's Scheme: Neutral, Dark, Hero, Dark, Dark, Dark ending 
135: A Vow For The Victims: Neutral, Dark, Hero, Hero, Neutral, Dark 
144: One To Succeed A God: Neutral, Neutral, Dark, Neutral, Dark, Hero ending 
145: Disappointed In Humanity: Neutral, Neutral, Dark, Neutral, Neutral, Dark 
146: Faith Taken From Solitude: Neutral, Neutral, Dark, Neutral, Neutral, Neutral, Hero final Boss 
153: Together With Maria…: Neutral, Neutral, Dark, Hero, Hero, Dark ending 
154: The Tragedy's Conclusion: Neutral, Neutral, Neutral, Dark, Hero, Hero, Hero ending 
155: The Day That Hope Died: Neutral,Neutral,Neutral, Dark, Dark, Dark 
159: At Least, Be Like Shadow…: Neutral, Neutral, Neutral, Dark, Hero, Dark 
160: Seeking A Silent Paradise: Neutral, Neutral, Neutral, Dark, Hero, Hero 
161: The Lion's Awakening: Neutral,Neutral,Neutral,Neutral, Dark, Dark ending 
162: Identity: Neutral, Neutral, Neutral, Neutral, Dark, Hero ending 
163: An Android's Rebellion: Neutral, Neutral, Neutral, Neutral, Neutral, Dark 
164: A New Empire's Begining: Neutral, Neutral, Neutral, Neutral, Neutral, Neutral, Hero final Boss 
165: Bullets From Tears: Neutral, Neutral, Neutral, Neutral, Hero, Dark ending 
166: Journey To Nihility: Neutral, Neutral, Neutral, Neutral, Hero, Hero 
168: Dr. Eggman's Miscalculation: Neutral, Neutral, Neutral, Hero, Dark, Hero 
170: Requiem For The Heavens: Neutral, Neutral, Neutral, Hero, Neutral, Hero ending 
171: Sonic Dethroned: Neutral, Neutral, Neutral, Hero, Hero, Dark 
175: Farewell To The Past: Neutral, Neutral, Hero, Dark, Neutral, Dark ending 
182: Compensation For A Miracle: Neutral, Neutral, Hero, Neutral, Neutral, Neutral, Hero final Boss 
191: Dark Soldier: Neutral, Hero, Dark, Dark, Neutral, Dark. 
195: Birth Of The Dark Soldier: Neutral, Hero, Dark, Neutral, Dark, Dark 
203: Perpetual Voyage: Neutral, Hero, Dark, Hero, Neutral, Dark 
215: Wandering For Eternity: Neutral, Hero, Neutral, Neutral, Neutral, Dark ending 
216: At Vagrancy's End: Neutral, Hero, Neutral, Neutral, Neutral, Hero ending 
220: The Importance of Truth: Neutral, Hero, Neutral, Hero, Neutral, Hero ending 
225: Solitary Journey: Neutral, Hero, Hero, Dark, Neutral, Dark. 
228: I Shall Be The One To Judge: Neutral, Hero, Hero, Dark, Hero, Hero ending 
229: Gone With The Darkness: Neutral, Hero, Hero, Neutral, Neutral, Dark 
230: The Ultimate Choice: Neutral, Hero, Hero, Neutral, Dark, Hero 
231: I Am The Strongest: Neutral, Hero, Hero, Hero, Hero, Dark ending 
232: Justice's Awakening: Neutral, Hero, Hero, Hero, Hero, Hero ending 
259: A Heart Bound To The ARK: Hero, Dark, Neutral, Neutral, Hero, Dark ending 
262: Steel Combat Boots: Hero, Dark, Neutral, Hero, Dark, Dark ending 
263: Protector Of The Ashen Moon: Hero, Dark, Neutral, Hero, Neutral, Dark ending 
266: I Know The Will Of Heaven: Hero, Dark, Neutral, Hero, Hero 
275: The Reason You Were Born: Hero, Dark, Hero Neutral, Neutral, Dark 
276: The Dark Part Of The Galaxy: Hero, Dark, Hero, Neutral, Neutral, Hero. 
282: Beloved Memories: Hero, Dark, Hero, Hero, Hero, Hero 
283: Birth Of A Devil: Hero, Hero, Dark, Dark, Dark, Dark 
291: The Doctor's Lie: Hero, Hero, Dark, Neutral, Neutral, Dark 
309: Funeral Procession In Space: Hero, Hero, Neutral, Neutral, Neutral, Dark 
316: The One Who Maria Entrusted: Hero, Hero, Hero, Neutral, Hero, Hero 
317: A.1's Enlightenment: Hero, Hero, Hero, Hero, Neutral, Dark, Dark ending 
318: A Dying Empire's Cry: Hero, Hero, Hero, Dark, Dark, Hero 
320: Tear-Soaked Hometown: Hero, Hero, Hero, Dark, Neutral, Hero ending. 
321: Sparks On The Horizon: Hero, Hero, Hero, Dark, Hero, Dark ending 
322: A Use For A Saved Life: Dark, Neutral, Dark, Hero, Dark 
323: Coffin Of Memories: Hero, Neutral, Hero, Neutral, Dark, Dark 
324: The Self-Imposed Seal: Hero, Hero, Hero, Hero, Neutral, Hero 
325: Pretense in the Mirror: Hero, Hero, Hero, Hero, Hero, Dark 
326: A Missive From 50 Years Ago: Hero, Hero, Hero, Hero, Hero, Hero, Hero final Boss 
Never Turn Back Song 
Successfully complete the Dark story line. 
Omochao Gun 
Successfully complete the Semi Hero story line. 
Samurai Blade 
Successfully complete the Dark story line. 
Satellite Laser 
Successfully complete the Semi Dark story line. 
Shadow Rifle 
Successfully complete the Last Story. 
Two Player Mode 
Use controller two to play as the Hero characters, such as Sonic, Tails, Knuckles, etc. This does not work with Doom's Eye. It also works with Maria. They cannot pick up guns. 
Yuji Naka Reference 
Sometimes the GUN soldiers will say odd things. One of the things that they say is 'Mr. Yuji Naka is all right.' Yuji Naka is the creator of the Sonic series.  |