Gather all the Chaos Emeralds and Sol Emeralds once that's done you will unlock extra zone, playable by selecting the third option on character select.
Get all Chaos Emeralds, Sol Emeralds, And Beat Both Stories.
(To Get Chaos Emeralds Jump On Those Spinning Things With Stars And Press Y To Boost Jump Into the Portal That Appears And Beat The Bonus Stage As Sonic (One Per A Zone). Beat A Boss As Blaze to Get A Sol Emerald. (Only One Per A Boss)
complete the main game as each character.(when you complete the story mode of some characters new characters are unlocked you also have to complete their main games.)and you have to get all 7 chaos emeralds.(in levels some giant rings are hidden if you touch them you will enter special stages complete all seven special stage to unlock all seven chaos emeralds).After you complete these to things final story will be unolcked.
Collect all the Chaos and Sol Emeralds to unlock the final boss.
you just type :sonic fgx download:
well if you wanna find it i suggest looking on the internet
it's impossible of doing that because i have done the experience but when i did it the characters downloaded was not moving.
press the left button on your mouse and switch the thing to play
To get dark sonic you must beat the game with every character in the game S.F.G.X.That unlocks mission mode. Beat mission mode and dark sonic is yours if you have trouble go to the youtube user marjosonic and start at video 9 or 8 [I forgot]
Get all the chaos emeralds and fight the final boss.
NO
Play as sonic shaow and knuckles
You need to have collected all 7 Chaos Emeralds. Then complete final Story and you will unlock Super Sonic & Shadow as playable characters. Then select one of them, get 50 rings, and jump and press 'x'.
by beating the story of knuckles
you just type :sonic fgx download:
sonic 5
hkskjt5 sonic fgx 2 games is all rig
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a+b
Collect all chaos emeralds.
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