This episode features four head-to-head eliminator battles to decide which four robots will battle against Matilda, Shunt and Sir Killalot in the arena at the end of the show. Robots Competing: Close Enough, Rosie the Riveter, Rot Box, Silver Box, The Green House, The Green Mouse, Tricerabot, Tut Tut

Six robots will enter the arena together and one robot would be knocked out in each round until there is one robot left standing. Robots Competing: Conquering Clown, Drillzilla, Red Virus, Rippa Raptor, Skullmania, Unibite

Robots from the North took on robots from the South in a straight knockout competition to see which side has the best robot. Competing: Union: Falcon, Sobek, Spike, Tiger Cat Confederacy: 6 Million Dollar Mouse, Bot-Ugly, Manta, The Revolutionist

Eight robots are paired into teams to battle each other. Only one robot from each team is allowed in the arena at a time and the teams can switch robots by 'tagging' them. Teams Competing: Tut Tut & Drillzilla, Tricerabot & Rosie the Riveter, Joker & Falcon, General Chompsalot & Run Away

Robots from the USA and the UK battle each other in a straight knockout competition to see which nation has the best robot. Robots Competing: USA: 6 Million Dollar Mouse, General Chompsalot, Joker, Rosie the Riveter. UK: Plunderbird 5, Pussycat, Spawn Again, Stinger.

The first US Championship contains four 6-robot rumbles, of which only one progresses to the next round. From then on its a straight knockout competition to find a champion. Robots Competing: 6 Million Dollar Mouse, Bot-Ugly, Close Enough, Coffin-Bot, Cyclone, Drillzilla, Falcon, General Chompsalot, Mad Cow, Manta, Medusa Oblongata, Panzer Mk 2, Red Virus, Rippa Raptor, Rosie the Riveter, Run Away, Shuriken, Sobek, Spartacus, The Brute, The Revolutionist, Tiger Cat, Tricerabot, Unibite

This episode features the US broadcast of the Second World Championship, which includes four robots from the US Championship; Drillzilla, Manta, Panzer Mk 2 and The Revolutionist. Robots Competing: Chaos 2 (UK), Manta (USA), Ansgar (Germany), Mastiff (Italy), Firestorm 3 (UK), Drillzilla (USA), NEAT Machine (The Netherlands), Whirlpool 70 (Sweden), Razer (UK), The Revolutionist (USA), Diotoir (Republic of Ireland), Flensburger Power (Germany), Tornado (UK), Panzer Mk 2 (USA), Philipper (Belgium), Yeborobo (South Africa).

Competing robots: Panzer Mk 4, Joker, Snake Bite, Cyclone, Spin Doctor, Probophobia

Competing robots: Manta, Mad Cow Bot, Trilobyte, Rocky-Bot-Boa, The Bat, Medusa Oblongotta

Competing robots: Brute, Sir Force A Lot, Conquering Clown 2, Texas Tornado, Black Widow, Unibite 2.0

Competing robots: The Gap, Trackzilla, The Revolutionist, Snookums, Psycho Chicken, Propeller-Head

Competing robots: Rosie the Riveter 2, Basenji, Night Stalker, Techno Trousers, Darkness, Mechadroid

Competing robots: Tricerabot 3.0, Brawler, Diskotek, King of Diamonds, Dragbot, The Termite

Competing robots: General Chompsalot 2, Marauder, G-Force, Run Away, Destructive Criticism, Lightning Tracks

Competing robots: Buzz, Tyranabot, Xylon, The Falcon Mark 2, Bunny Attack, Paul Bunyan

The winners from the previous heats compete for the US Robot Wars Championship

Six robots will enter the arena together and one robot would be knocked out in each round until there is one robot left standing. Competing robots: Brute, Cyclone, Hyperactive, Revenge, The Termite, Thor's Hammer.

Sixteen robots are paired into teams to battle each other. Only one robot from each team is allowed in the arena at a time and the teams can switch robots by 'tagging' them. Competing teams: Trackzilla & Trilobyte, Mad Cow Bot & Texas Tornado, Sir Force A Lot & G-Force, Bang & Snookums, Rocky-Bot-Boa & Black Widow, Joker & The Falcon Mark 2, The Termite & General Chompsalot 2, Hyperactive & Mechadroid

Robots from the USA and the UK battle each other in a straight knock-out competition to see which nation has the best robot. Competing robots: USA: Manta, Joker, Brawler, General Chompsalot 2 UK: Wowot, Tornado, Kat 3, Razer

Two knock-out rounds to decide which two robots will battle against Dead Metal, Shunt & Sir Killalot in the arena at the end of the show. Competing robots: Paul Bunyan, Snake Bite, Night Stalker, Rosie the Riveter 2, Buzz, Ninjitsu, Snookums, Medusa Oblongotta.