Massive Weapon Experience & Bolts:
After gaining access to the Battledome Challenge "Endzone", use the Holoshield Launcher and/or Mini-Turret Launcher with Shock Mod equipped. After setting up the shields and turrets, equip whatever weapon you want to upgrade, making sure you have the Shock mod equipped. Complete the challenge and repeat until you upgrade your weapons to the desired level. After being able to buy Experience/Jackpot Mods, max out the alphamods on the weapon of your choice to rapidly get to lvl 99 weapons and/or make millions of Bolts.

Unlockable Skins:
LandShark 35 Glamour Stars
King Claude 30 Glamour Stars
Vernon 30 Glamour Stars
"The Muscle" 25 Glamour Stars
Alpha Clank FREE
Liberator Beat Liberator Tournament
Vindicator Beat Vindicator Tournament
Crusader Beat Crusader Tournament
Avenger Beat Avenger Tournament
Marauder FREE
Squidzor 40 Glamour Stars
Kid Nova 45 Glamour Stars
W3RM 55 Glamour Stars
Starshield 60 Glamour Stars
Venus 75 Glamour Stars
Jak Skin Co-op mode, 50 Glamour Stars. Only 2P
Ninja Ratchet Collect all Exterminator Cards

Skill Point Cheats:
Get a certain number of skill points to unlock each cheat
Weather 60 skill points
Super Morphing Freeze Wrench 35 skill points
Super Bloom 25 skill points
Exterminator Bot Heads 20 skill points
Remove Helmet 15 skill points
Gangsta Guns 10 skill points
HUD Color 5 skill points
Kill Quark! 105 skill points

Game Unlockables:
Exterminator Mode Complete the game one time.

Exterminator Cards:
These are given to you after completing various goals:
Vox Get all Skill points
Vox's Pet Complete all missions on highest difficulty
Ace Harlight Earn 400,000 Dread points
Shellshock Buy all weapons and Omega mods
Reactor Buy Mega version of all weapons (Challenge mode)
Eviscerator 100 Max Nanotech