Contestants are shown pictures of trains and they have to guess whether the studio audience (that was previously polled) thought it looked more like a mouse or a rat.
For the final round, the audience also could choose 'vole'

Contestants are shown pictures of trains and they have to guess whether the studio audience (that was previously polled) thought it looked more like a mouse or a rat.
For the final round, the audience also could choose 'vole'