Here are my machines...

LIGHTWEIGHT: Little Big Bot
This little tiny robot has a lot of hard. Shaped a bit like Biohazard, his main tactics is to pummel his oppodents to death with his nasty axe, which doubles as a srimech, takes about a second to swing down, and can go through most things.
Speciality: Weapons and Wheels.

MIDDLEWEIGHT: Tom
Wedge shaped, Tom has a flipper which can toss FIVE times his own body weight. The whiskers, ears and tail are to prevent him getting stranded on any vulnerable sides, whilst the flipper rights him.
Speciality: Weapon and Armour.

HEAVYWEIGHT: Orka MK4
You probably know what he can do. Behemoth shaped, front lifting scoop of over 100 kilos lift, claw to grab (not crush), dorsal fin srimech and tough armour as well.
Speciality: All round jack of the trades.

SUPER-HEAVYWEIGHT: Octo-Push 3
Or Storm 2 meets Revolutionist meets Squidward Tentacles. Its fast, rams oppodents with the front wedge, or cuts them up with that nasty rear drum. If youve seen Revolutionist in action, and I have, youll KNOW what it can do. It does not stand being flipped though.
Speciality: Weapons, Power and speed.

PICTURES
Little Big Bot (left) and Tom (right): http://img171.imageshack.us/img171/3750/smallrobotsql7.pnghttp://img171.imageshack.us/img171/3...lrobotsql7.png

Orka MK4: http://img443.imageshack.us/img443/3270/orkamk4ij9.pnghttp://img443.imageshack.us/img443/3270/orkamk4ij9.png

Octo-Push 3: http://img187.imageshack.us/img187/4686/octopush3da2.pnghttp://img187.imageshack.us/img187/4...topush3da2.png

Please tell me if something is needed