Mr. Sunshine multi-player skin:
Select the "Edit Profile" option, then hold L2 and press Left, Down, Right, Left, Down, Up, Up, Left.
Vernon multi-player skin:
Select the "Edit Profile" option, then hold L2 and press Left, Right, Down, Left, Down, Up, Right, Up.
Ninja Ratchet:
Collect all Exterminator cards.
Obtaining Exterminator cards:
| Vox | Get all skill points |
| Vox's pet | Complete all missions under the highest difficulty setting |
| Shellshock | Get all weapons and Omega mods |
| Eviserator | Get over 100 Max Nanotech |
| Ace Hardlight | Get over 300,000 Dreadpoints |
| Reactor | Buy all Mega weapon versions, including the Harbringer |
Easy money and Level 99 weapons:
Get to the point where you unlock "Endzone" in challenge mode. Repeating this challenge can reward 3-5 million bolts per try, as well as leveling up your weapons quickly. You'll want the shock mod equipped, but also try using mini-turrets and the holoshield launcher. Just remember to equip the weapon you want to upgrade after setting up your sheilds and turrets.