Sonic Riders - Zero Gravity - Platform: Wii

Unlockables:
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Characters

Complete the following storylines to obtain the following characters.

Amigo               : Complete all missions in Story mode. 
Billy               : Complete all missions in Story mode. 
Blaze               : Complete Babylon Story. 
Cream The Rabbit    : Complete Hero Story. 
Eggman              : Complete Babylon Story. 
NiGHTS              : Complete all missions in Story mode. 
Rouge The Bat       : Complete Hero Story. 
SCR-GP              : Complete Babylon Story. 
SCR-HD              : Defeat SCR-HD during a Free Race. 
Shadow The Hedgehog : Complete Hero Story. 
Silver              : Complete Babylon Story. 


Gear:
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Complete the indicated task to unlock the corresponding gear.

Angel/Devil gear: Complete Hero Story. 
Chaos Emerald gear: Earn an "Extreme" rank on all missions in Story mode. 
MAG gear: Complete all missions in Story mode. 


Movies:
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Complete the indicated task to unlock the corresponding movie.

Ending  : Complete Babylon Story. 
Insert  : Complete Babylon Story. 
Opening : Start Hero Story. 


Tracks:
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Complete the indicated task to unlock the corresponding track.
80s Boulevard: Complete Babylon Story. 
90s Boulevard: Complete Babylon Story. 


Mission mode:
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Successfully complete Babylon Story or Hero Story. When that storyline is 
played again, you can choose any stage and play in Mission mode.


World Grand Prix mode:
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Successfully complete Hero Story.


Easy rings:
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Enter Mission mode and select Mission 2, "Collect 'X' Rings" on any of the tracks. 
During this mission you are not limited to a set number of rings that you can 
collect. Collect as many rings as possible before reaching the goal, then wait 
for the results screen to appear. Once the results finish displaying, all the 
rings you have collected will be automatically sent to your ring account (although 
the game will not show you this). Pause game play and select "Restart" to begin 
the mission again. Keep repeating the process. If you can get at least 250 rings 
per try, you should have collected enough rings to purchase even the Rainbow gear 
within an hour or two.

The Gambler gear at the shop has an interesting secret. If you have bought it and 
take it on a World Grand Prix, you can earn 500 rings per race. If you finish in 
first place in the Grand Prix on top of that, you will get a total of 3,500 rings. 
Just three Grand Prixes will give you enough rings to buy the rainbow in exactly 
one hour. Note: You must know your courses well though, because the Gambler cannot 
take type shortcuts.


Best Board and Tight Turns:
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Submitted by: Phillip

My favorite board is the GC Master. It may not look like much, but it has good 
qualities and the gear changes rock. Also, on courses that have tight U-turns, 
activate Gravity Control before taking the turn. Than, float over the gap in the
course and aim in the new direction. It saves a lot of time and effort, and really
helps on the Botanical Gardens and Crimson Crater courses.