Arctic Thunder - Platform: XBox

No Drones Mode:
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After you start the game but and before selecting a player, 
press X, X, Y, Y, White, Black, Start. 

Expert Mode:
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After you start the game but and before selecting a player, 
press Y, X, Y, Y, X, Start. 

All Randoms Mode:
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After you start the game but and before selecting a player, 
press Black, R, X, Y, Black, R, Start. 

All Atomic Snowballs Mode:
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After you start the game but and before selecting a player, 
press X, X, X, White, Y, Start. 

All Grappling Hooks and Randoms Mode:
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After you start the game but and before selecting a player, 
press Y, Y, L, Y, Y, White, Start. 

All Rooster Tails Mode:
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After you start the game but and before selecting a player, 
press Black, R, L, White, X, Start. 

All Snow Bombs and Randoms Mode:
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After you start the game but and before selecting a player, 
press Y, Y, Black, R, Start. 

All Boost Mode:
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After you start the game but and before selecting a player, 
press Y, Black, Black, Y, R, Start. 

Clone Mode:
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After you start the game but and before selecting a player, 
press White, L, L, Y, White, Y, Start. 

Everyone Invisible Mode:
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After you start the game but and before selecting a player, 
press X, Y, X, R, Y, Y, Start. 

No Power-Ups Mode:
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After you start the game but and before selecting a player, 
press X, X, Y, X, R, X, Start. 

Super Boost Wheelie Mode:
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After you start the game but and before selecting a player, 
press Y, White, X, R, X, L, Start.