The Test Robots are mechanical, penguin-like machines invented by Gary the Gadget Guy. They were originally intended to help Gary test his more dangerous inventions but they ended up going haywire and escaping into the Mine Tunnels. A test robot has appeared in the Gadget Room for quite a few missions, but they didn't make a big appearance until the game Club Penguin: Elite Penguin Force was released. The Test Bots, along with the Ultimate Proto-Bot 10000, serve as the game's main antagonists. There are 3 Test Bots: Wheel Bot, Snow Bot, and Jet Bot.