Ratchet & Clank: Up Your Arsenal Cheats

Glitches (siege only)
You should have 40 health to do this glitch. Go to the opposite base you are on. The base turrets are shooting at you. Get on top of the left one and they should shoot you on top of them. It will say 0 health, but you can still shoot! Blast away until you fall off or when you blow both turrets up. Remember this takes a lot of practice and works best at Korgan Outpost.