To unlock the following challenges, perform the corresponding tasks:
CHALLENGE - HOW TO UNLOCK
Attrition - Obtain Arena Token in Level 2: Mess Hall Mashup
Big Hits - Obtain Arena Token in Level 4: Undertown and Beyond
Magnet - Obtain Arena Token in Level 1: Stow Away
Malfunction - Obtain Arena Token in Level 5: Core of the Problem
No Time for Heath - Obtain Arena Token in Level 3: Welcome to Erf
Sale on Turrets - Obtain Arena Token in Level 6: No Time for Sightseeing
Unlock the following aliens by performing the corresponding tasks:
ALIEN - HOW TO UNLOCK
Aerodactyle - Complete level 2, "Mess Hall Mashup".
Big Chill - Complete level 3, "Welcome to Erf".
Bullfrag - Complete level 2, "Mess Hall Mashup".
Cannonbolt - Complete level 5, "Core of the Problem".
Gravattack - Complete level 4, "Underground and Beyond".
Swampfire - Complete level 1, "Stow Away".
XLR8 - Complete level 4, "Underground and Beyond".
Marathon Man - Run 42,195 meters.
Breakout - Smash 25 Breakable Walls.
Wrecking Crew - Smash 75 Breakable Walls.
Leapfrog - Leap over 25 Jumpable Walls.
Jump, Jump - Leap over 75 Jumpable Walls.
Fastball Special - Detonate 25 Explosive Walls with a projectile.
Sharpshooter - Detonate 75 Explosive Walls with a projectile.
Long Jump - Jump over 20 pits.
Learned Scholar - Complete the Tutorial Level.
Lack of Communication - Complete Level 1.
Incursean Incursion - Complete Level 2.
New Kid on the Block - Complete Level 3.
Underground Scene - Complete Level 4.
Infiltrate Exterminate - Complete Level 5.
Outta There! - Complete Level 6.
Check Out These Pythons - Collect both of FourArm's Upgrade Tokens in Single Player.
You're On Fire! - Collect both of Swampfire's Upgrade Tokens in Single Player.
How I Roll - Collect both of Cannonbolt's Upgrade Tokens in Single Player.
Super-Chirp - Collect both of Crashhopper's Upgrade Tokens in Single Player.
Speedy Recovery - Collect both of XLR8's Upgrade Tokens in Single Player.
I'm Cool Like That - Collect both of Big Chill's Upgrade Tokens in Single Player.
Tastes Like Chicken - Collect both of Bullfrag's Upgrade Tokens in Single Player.
Block Party - Collect both of Bloxx's Upgrade Tokens in Single Player.
Wing and a Prayer - Collect both of Astrodactyl's Upgrade Tokens in Single Player.
Newtonian Alien - Collect both of Gravattack's Upgrade Tokens in Single Player.
Not Just Another Toadie - Defeat 25 Toad Battlers.
Flame Retardant - Defeat 25 Fire Infantry.
Lillypad Shootout - Defeat 25 Toad Assault Mercs.
Kill You Last - Defeat 25 Commandos.
Frozen Assets - Defeat 25 Ice Infantry.
Do You Even Lift? - Defeat 25 Powerlifters.
Tank Spanker - Defeat 25 Toad Tank Mechs.
Bad Case of Gas - Defeat 25 Gas Infantry.
Return To Sender - Use the "Return to Azmuth" option in the Pause Menu.
Bullseye! - Detonate 150 Explosive Walls with a projectile.
Smash and Grab - Smash 150 Breakable Walls.
Spring Shoes - Leap over 150 Jumpable Walls.
More Power! - Collect 1,000 Omnitrix Energy Orbs.
You Break it, You Bought it! - Break 100 Omnitrix Energy containers.
Challenge Accepted - Collect all the Arena Challenge Tokens.
I'm Not Dead Yet! - Change from Ben back into an Alien Form without dying.
All In a Day's Work - Complete the game.
Can't We All Just Get Along? - Defeat all Arena Challenges.
Hero - Complete the game on Hero Difficulty.
Platinum - Earn all Bronze, Silver, and Gold trophies.