Mr. Perkins hint:
You can destroy his shield and not get hit via the Critter Strike or Omegatech Frost Cannon by freezing him or turning him into a critter.
Unlock the following bonuses by completing the game:
BONUS - DESCRIPTION
Grief mode - Griefing your friends has never been easier.
Big Head mode - Adjust the size of your heroes' heads (normal/big/biggest/small).
Screen effects - Uses advanced rendering technology to make stuff look old (black and white).
Keep the Meter Running - Don't let the air taxi take damage in Luminopolis.
El Matador - No one gets hit by a grove beetle in the Deadgrove.
It Was Like That When We Got Here - Destroy all of the towers in Gorthon Crater.
A Moment of Reflection - Use only Reflectors to destroy the generators in Phonica Moon's security tunnels.
Mission Improbable - Get through the laser walls at the end of Uzo City in 45 seconds.
Night Lights are for Wimps - Get through Rossa Fields without using any of the energy repositories.
The Mad Plasmabomber - Kill eight enemies with one shot.
Pyromancer - Barbecue four enemies at the same time using the Pyro Blaster.
Knockout Artist - Kill three enemies with one attack using the Blitzer.
Fine, But You're Cleaning Up After Them - Get 10 critters on screen at once.
Eight Seconds - Kill eight enemies in eight seconds using the Darkstar Fission Tether with two or more teammates.
Zurkon the Legend - Kill 100 enemies with Mr. Zurkon out.
Melee Legend - Kill 150 enemies with melee.
Q-Force Legend - Kill 50 enemies in a row using melee without taking damage.
Doppelbanger Legend - Destroy 30 enemies while they're distracted by the Doppelbanger.
Quantum Deflector Legend - Absorb 500 shots with the Quantum Deflector.
Zoni Legend - Kill 15 enemies that have been slowed down by the Zoni Blaster.
Cloaker Legend - Kill 15 enemies while using the Cloaker.
Quick Killer - Kill eight enemies in two seconds.
Overload Legend - Use the Co-op overload to kill 60 enemies.
Life Support - Revive a teammate with one second left on their timer. (2P +)
Friendship through Firepower - Buy your first weapon.
Vac-U Legend - Kill 50 enemies with the Vac-U 4000.
Waiting Room - Reach the lobby. (2P +)
Connected - Play an online game. (2P +)
Old-School - Play a single-player game.
Couch Potato - Play an offline-only game. (2P +)
The Saviors of Magnus - Defeat the Loki Master.
Intergalactic Tool of Justice - Defeat the Z'Grute.
Anyone for Sushi? - Defeat the Octomoth.
Now We Need a Really Big Tissue - Defeat the Wigwump.
Spog 2.0 - Defeat Commander Spog.
Now That's a Big Fish - Defeat King Sepiad.
Space Cadet - Complete Terawatt Forest.
Bomb Disposal - Blow up 85% of the exploding crates in Aldaros Plains.
On Some Planets They're a Delicacy - Shoot all of the slorgs back into the waters of Octonok Cay.
Upping your Arsenal - Buy half of the weapons.
Tricked Out - Fully upgrade one weapon.
Galactic Hero - Kill 500 enemies.
The Bolt Banker - Have 100,000 bolts banked.
For the Zombie Apocalypse - Buy all of the weapons.
Upgraded - Fully upgrade all weapons.
The First Million is Always the Hardest - Have 1,000,000 bolts banked.
Winter Wonderland - Escape the Polar Sea.
4 Play - Earn all Bronze, Silver, and Gold trophies.