This is the Dummy Killer! The Dummy Killer is the perfect machine for anyone who has to get rid of unwanted guests coming to their house. Here's how the Dummy Killer works; It starts off with a robot who transforms into a car, who will then drive over you mouse. The mouse then clicks on the button that triggers the final part the machine.In the final stage of the machine, a door opens, letting a giant ball roll down a hill into a smaller ball which will go down another inclined plane to hit some Dominoes. The Dominoes will then hit each other and the chain reaction will start knocking over increasingly large Dominoes. The final Domino will crush the invader, saving your lawn from those pesky Dummies yet again.

The robot is a gear system when it transforms, and is a wheel and axle system when driving into the mouse. The balls rolling down the hill is an inclined plain, and the Dominoes are all levers.