Racetrack

Third Street Break every monitor in the Cronus mission

Awesome Aggression Get 100 kills in Challenge Mode Countdown (Hotshot or harder)

Goblin King Get 100 kills in Labyrinth

Just Practicing Get 500 Challenge Mode kills on Trainee

Killing Spree Get 20 consecutive Challenge Mode kills without taking damage

Nearly Impossible Get 100 Challenge Mode kills on Insane

No Dead Cats Finish 5 Cronus levels without finding any secrets

Not Bad Score 100,000 in Challenge Mode on Rookie

A Real Challenge Score 100,000 in Challenge Mode on Hotshot

Are You Insane? Score 100,000 in Challenge Mode on Ace

Untouchable Destroy every operator in a Lockdown without taking damage (Rookie or harder)

One Hand Tied Get 50 Challenge Mode kills in one session without firing a primary (secondary/smash only)

Unarmored Get 500 Challenge Mode kills on Rookie

Ahimsa Complete Challenge Mode Countdown with 0 kills (Rookie or harder)

Run or Die Survive to the end of Countdown (Ace or harder)

Infinite Forever Get 100 Challenge Mode Infinite kills on every level (Rookie or harder)

Unbreakable Score 50,000 and survive to the end of all Challenge Mode Countdown levels (Rookie or harder)

Robocide Destroy 1000 operators

Fully Loaded Fully upgrade every weapon and missile in the Cronus mission

Demo Derby Smash 10 operators in one level

Bright Light! Bright Light! Destroy an operator using only Flares