Metal Arms: Glitch In The System Cheats

Defeating General Corrosive
In last level, you will find yourself in ruins of the Space Station
that you destroyed earlier. After General Corrosive survives the
crash, he will get very mad, but will not be that "indestructible".
First, try to shoot off his right leg so he will not be that fast.
Then, go for his left arm that he uses to get those flying green
things out of his mouth. Next, go for the whole thing. It will be
easy with rockets and few "cleaners".

Defeating Kingbot
Fire missiles at Kingbot until he stops moving. This usually happens
after about four to five shots. Then, aim your targets at his right
leg, stand just off-center, and throw in a Core Charge. This
normally takes about five times. After ever two charges, some little
bots will appear. The best weapon to use against them is the Scatter
Ammo, as it will kill them quickly, especially when they are
directly bearing down on you. Missiles will cause more damage to
your health.

Disable the King Bot by firing missiles at him. This will make him
stop in his tracks. Then his mouth will open, and you can throw core
charges in. Next, aim your recticle (target) at his leg where it
meets his body. You need to stand slightly to the right.

Fire It Up: Defeating Swarmers
In the Fire It Up level, there are a lot of Swarmers (the little
spiders). Use the flamethrower to temporarily push them away. If
there are a large number of them, the easiest way to kill them is to
double jump over or out of them. If they start eating at your
joints, double jump and they should get off.

They Live: Zombie bot allies
Reach the part of the They Live level where two zombie bots are
trapped in two cages. Free them by cutting the red wires that are
holding the cages and they will become your allies.

Multi-player: Invincibility
In any multi-player level, press Start. You can be shot at, but
receive no damage. You cannot move, but it is better than dying.

Multi-player: Breaking the laws of speed
Stand on the RAT or the Tank without falling off while a friend is
driving at full speed. On the RAT, you can be in the gunner seat;
just get out and walk the deck of the car without falling (at top
speed). Or, take the Tank and if a friend (or enemy) is driving, you
can get on the back of the Tank's bumper. Make your way around to
the front or the tank by skimming the side of it.

Automatically recruit a sentry
In some levels there are guns that are difficult to destroy. If you
throw an EMP grenade at it, then hijack it, you can shoot with it.
When you get out of the sentry, it will automatically be recruited,
giving you a good advantage in the Mill City Hub, and Mill City
Center levels.

Grenade warning
Every grenade you launch can hurt you if you are close to it.