Bronze:

Anonymous
Objective: Play an online race

Newcomer
Objective: Complete the qualifier race

Mechanic
Objective: Create a kart in Kart Studio

Sculptor
Objective: Create a track in Track Studio

Dresser
Objective: Create a Mod in Mod Studio

Shopping Spree
Objective: Enter the Shop

Getting To Know You...
Objective: Invite 5 unique friends to an online race

Fill\'er Up
Objective: Fill your boost meter

Knockin\' Boost
Objective: Drive over 100 boost pads

ModSpot Explorer
Objective: Visit all the locations in ModSpot

Headspinner
Objective: Do a 1080 spin and land successfully

Taster Session
Objective: Try all the game modes in Single Player Race

Showing The World
Objective: Win 10 online races

Trigger Happy
Objective: Use all the weapons in the game

Fast Learner
Objective: Complete all the race tutorials, and watch all the video tutorials

Offering Opinions
Objective: Rate 10 tracks, 10 Mods, and 10 karts

Pioneer Racer
Objective: Be part of the first race on a published track

Drifting Superstar
Objective: Earn 100,000 drift points in one drift

The Drifter
Objective: Drift 1,000 times in total

Slow and Steady
Objective: Win an action race without using any boost or using a boost pad

Pacifist
Objective: Win an action race without firing any weapons

Remixer
Objective: Remix a character, a kart, and a track

Series Winner
Objective: Win a ranked race series

ModNation Prospect
Objective: Earn at least 1,000 Total XP (including Race XP and Create XP)

Say Cheese!
Objective: Use photo mode in a race, in a studio, or in the ModSpot

Beat Down
Objective: Win your first online action race on a particular published track

Bruiser
Objective: Get a total of 200 takedowns

Aggro Racer
Objective: Sideswipe 75 opponents

Sharing Karts
Objective: Publish a kart and have at least 10 people download it

Sharing Mods
Objective: Publish a character and have at least 10 people download it

Sharing Splines
Objective: Publish a track and have at least 10 people download it

Silver:

Flaming Hot!
Objective: Get in the top 10% in Hot Lap Mode on any given day

Join the Team
Objective: Beat all 28 developer lap times in career

ModNation Star
Objective: Earn at least 5,000 Total XP (including Race XP and Create XP)

Level of Merit
Objective: Complete all the career challenges

Hoarder
Objective: Collect all the tokens in the single player career

Taking On The World
Objective: Win 100 Online Races

Gold:

Dominator
Objective: Come 1st in every race in the career

Star Creator
Objective: Earn at least 250,000 Create XP

ModNation Superstar
Objective: Achieve level rank 30

Platinum:

ModNation Legend
Objective: Earn all ModNation Racers trophies to unlock this platinum trophy

Secret Trophies:

Mayhem Tour Winner
Objective: Win the Mayhem Tour

Range Tour Winner
Objective: Win the Range Tour

Grim Tour Winner
Objective: Win the Grim Tour

Third Eye
Objective: Hit 20 opponents with weapons dropped as secondary weapons

Shields Up!
Objective: Successfully defend yourself with your shield 20 times

Win Grand Finale
Objective: Win the Grand Finale

Elite Hunter
Objective: Beat all the Elite racers in the grudge matches

Order ModNation Racers game