Kill 3 enemies with a single Wrench throw.
Kill an enemy while the Spiral of Death is returning.
The Simple Art of Armageddon
Kill 15 enemies with the RYNO V without releasing the trigger.
Kill 30 enemies with the Plasma Striker by shooting their weakspot.
Fire the Sonic Eruptor perfectly 50 times.
Kill 50 dancing enemies.
Head Like a Rock
Maintain an oil fire for 30 seconds.
Timebomb 250 projectiles.
Keep four enemies frozen at the same time with the CryoMine Glove.
Custodian of Time
Fix 50 broken objects.
Master of Time
Reach round 30 on the Time Fixing Mini-game.
Dance, Monkey, Dance
Make 8 Monkeys dance at the same time.
Destroy 20 fighters without taking damage.
Kill 2 enemies with one bullet.
Kill two enemies at the same time with Clank.
Friend of Fred
Kill 10 enemies with one Rift Inducer 5000 shot.
Kill 50 enemies while in mid-air.
Kill ten enemies with one Dynamo.
Destroy 5 Dropships before they can drop off their passengers.
Kill 100 Zyphoids.
Destroy every breakable object in the Fongoid Village.
Grab a bomb in mid-air.
Complete the challenge Gone in 60 Seconds in less than 45 seconds.
Lifted and Gifted
Complete any challenge without taking off the Hoverboots.
Defeat the Elite Hydra Tank with the Wrench.
Complete Overkill without taking damage.
Nefarious Space Station
Take damage from all of the Tetramite swarms without dying.
Destroy all Camo Crates in the level.
Destroy every piece of luggage in Axiom City.
Destroy every trash pile in Monoloth Fields. Trash piles are large pieces of scrap metal, like the one found in front of Aphelion. There are 5 in total, all located before the entrance to the Hollow. They can only be destroyed by explosives.
Son of Kaden
Complete the Hoverboot course in 45 seconds or less.
Stay behind the Comet for 15 seconds.
No Respect for the Dead
Destroy every piece of junk in the graveyard.
Hit and Run
Destroy 10 enemies by ramming into them with the Quantum Reflector.
Complete all Space Missions.
I Think I'm Gonna Be Sick
Perform 5 U-Turns in 20 seconds.
Destroy 20 enemies without using missiles.
The Great Clock
Complete the final Time Puzzle in 40 seconds or less.
What Goes Up
Use a Time Bomb to keep a crate suspended in mid-air for three seconds.
Complete the Great Clock: Sector 1 in 300 seconds.