Timesplitters Future Perfect Cheats

How To unlock the following charactors

Beating the boss in Mansion of Madness involves simply side-stepping in
one direction while aiming up and turning. The closer Cortez is to the
fountain, the greater the chance it is to avoid being swiped. When the
boss is about to die, step back and fire the last shots to avoid the
final death blow.

Beating the boss in What Lies Beneath involves simply using the Ghost
Gun and knowing where to stand. Locate a rock that shields Cortez's legs
while allowing him to fire back unimpeded. The fire attack from the boss
has to drop to the floor before moving forward; this simple rock
protects the player from most of the fire breath damage. A melee attack
will destroy the bats and allow the Ghost Gun to damage the tank.

Story levels "Machine Wars" and "Something to Crow About" play similar to "Robot Factory" in TimeSplitters 2, considering that you fight robots similar in ability to ChassisBots and SentryBots. Also, you get involved in taking out energy sources, much like the energy nodes in "Robot Factory".

Firstly destroy the big gun on its back because this will take the most damage out of you. Make sure you use the minigun on it because it will be alot easier. Then destroy the little guns on its sides and finally destroy the things that fire plasma grenades. By the way if you run out of ammo in your minigun use your plasma autorifle.
The very last boss is even easier!Just disable its guns first then destroy its feet, and bingo!Go round the back and blast it to bits by sticking a rocket on your K-SMG!Repeat this about 3-4 times and youve completed the game!
I really could go on all day going through a complete walkthrough as ive completed it on easy normal and hard and nearly done all the challenges and leagues. I found it easy but im not sure about you lot though.