- "Silver Box, in at 174 pounds, with two 28 volt electric motors, lethal rotating disc, and heavily armoured, but has yet to prove itself."
- — Stefan Frank introduces Silver Box
Silver Box was a loanerbot which fought in the first season of Robot Wars: Extreme Warriors. It was driven by Team Vicious, drivers of The Brute, which had become damaged in the US Championship. Silver Box competed in the Robot Rebellion where it defeated Close Enough to qualify for the battle against the House Robots, and although Silver Box was pitted by Sir Killalot, the battle was declared a draw, making Silver Box an undefeated robot.
Silver Box was a box-shaped robot armed with a large cutting disc at the front, with a fairly high top speed. Silver Box was invertible, and lived up to its name in terms of design. It featured prominent wheel guards to protect its main drive, and supporting wheels on top and bottom, keeping the disc off the surface of the floor. However, its ground clearance was high.
Silver Box's invertibility provides it an advantage over its future identity Zanzara, which was fur-coated and was not invertible. However, Silver Box was lighter than Zanzara at 174lbs, rather than 211lbs.
Competing in the Robot Rebellion for the opportunity to face the House Robots, Silver Box faced the competitor Close Enough, which had already broken one of its motors.
Silver Box swiftly closed the gap and cut into Close Enough, who had not moved off the arena wall. Shunt shoved it out, and Silver Box kept cutting away at the exposed frame of Close Enough. By now, it became clear that Close Enough was not going to move. Close Enough was counted out swiftly by Refbot, putting Silver Box through with fellow loanerbot Tut Tut, as well as the two machines of Team Juggerbot.
- "Just because Close Enough pooped out, doesn't mean you guys shouldn't be proud of the fact you that took advantage of them, buried them, put them back several years mentally!"
- — Mick Foley
Silver Box was initially rammed by Shunt and it tried to get in the action by going into a CPZ and attacking the side of Matilda, ripping up her fiberglass shell. After Matilda was rammed onto her side by Tricerabot, Sir Killalot entered the fight and picked up Silver Box with his claw, but just as he was about to put Silver Box into the Pit, he lost his balance and Tricerabot toppled Sir Killalot forward, sending both robots tumbling towards the Pit. Although Silver Box was eventually dropped into the pit by Sir Killalot, the weight of Silver Box in combination with Tricerabot's push from behind caused Sir Killalot to topple forwards, and eventually into the pit itself. The battle was declared a draw as a result.
|SILVER BOX - RESULTS|
Final (competing with Rosie the Riveter, Tricerabot & Tut Tut)
|Round 1||vs. Close Enough||Won|
|Final||vs. Shunt, Matilda and Sir Killalot||No Winner|
- Wins: 1
- Losses: 0
NOTE: The House Robot Rebellion from Season 1 is not included
|Main Series||Silver Box Series Record|
|Season 1|| Robot Rebellion, Final|
Entered with The Brute
|Season 2||Entered with Brute|
|Nickelodeon||Did not enter|
NOTE: Silver Box was repurposed to compete in Nickelodeon Robot Wars using a new identity, Zanzara.
- Silver Box was one of the few robots which never lost a battle, even in spite of being pitted in its final appearance.
- In contrast, its future identity as Zanzara lost all of its battles.