Super Frosty
Get a Gold Medal in "Winter Rush"
Chill 'em All
Get a Gold Medal in "Aesir Village"
Anubis
Get a Gold Medal in "Pharaoh's Scrapyard"
King Tut
Get a Gold Medal in "Ra's Revenge"
Titan of Industry
Get a Gold Medal in "Toxic Barrage"
Sludge Rider
Get a Gold Medal in "Sludge Blitz"
Valkyrie's Choice
Get a Gold Medal in "Castle Valhalla"
Castle Crusher
Get a Gold Medal in "Fimbul Tundra"
Heatseeker 2: The Seekening
Get a Gold Medal in "Burning Necropolis"
Lava Lord
Get a Gold Medal in "Edge of Amenti"
Acidic Assassin
Get a Gold Medal in "Machine Death"
Nuclear
Get a Gold Medal in "Industrial Havoc"
Frosty
Get Any Medal in "Winter Rush"
Iced Out
Get Any Medal in "Aesir Village"
The Jackal
Get Any Medal in "Pharaoh's Scrapyard"
Pyramid Scheme
Get Any Medal in "Ra's Revenge"
Lethal Industry
Get Any Medal in "Toxic Barrage"
Sludge Runner
Get Any Medal in "Sludge Blitz"
Viking Challenge
Get Any Medal in "Castle Valhalla"
Castle Crasher
Get Any Medal in "Fimbul Tundra"
Heatseeker
Get Any Medal in "Burning Necropolis"
Lava Lover
Get Any Medal in "Edge of Amenti"
Basic Assassin
Get Any Medal in "Machine Death"
Atomic
Get Any Medal in "Industrial Havoc"
Something to Prove
Get a Gold Medal in Any Race Map
Where's My Wish?
Get a Gold Medal in All Race Maps
Allegedly Challenging
Get a Gold Medal in "The Premiere" Across All Modes
Barely Challenging
Get a Gold Medal in "Termination" Across All Modes
Basically Challenging
Get a Gold Medal in "Driftway" Across All Modes
Pretty Challenging
Get a Gold Medal in "Trip Hop" Across All Modes
Very Challenging
Get a Gold Medal in "Killer Boost" Across All Modes
Super Challenging
Get a Gold Medal in "Precipice" Across All Modes
Crazy Challenging
Get a Gold Medal in "Sidewinder" Across All Modes
Ridiculously Challenging
Get a Gold Medal in "Blastoff" Across All Modes
Ludicrously Challenging
Get a Gold Medal in "The Gauntlet" Across All Modes
What Acceleration!
Get a Gold Medal in All Challenge Levels for Time Trial Mode
What Agility!
Get a Gold Medal in All Challenge Levels for Collection Mode
What Alacrity!
Get a Gold Medal in All Challenge Levels for Hardcore Mode
What Can't You Do?
Get a Gold Medal in All Challenge Levels Across all Modes
Rookie
Finish the Basic Tutorials
Professional
Finish the Intermediate Tutorials
Resident Champion
Finish the Advanced Tutorials
Costume Connoisseur
Unlock All Racer Skins
You Can't Catch Me!
Finish in First Place in an Online Race
Just A Jump To The Left...
Use the "Chronoshift" Power-Up
Minesweeper
Blow Up an Opponent Racer's Mine
Can't Take You Anywhere
Destroy 50 Breakable Objects
A Little Push
Use an Impulse Shot to Eliminate an Opponent Racer
Shut Down
Use a Crash Missile to Eliminate an Opponent Racer