After the building-block Christmas tree and its stabilizers got knocked over, it was time to build a guinea pig run for Baby Goat and Baby Unicorn. They wore lengths of yarn wrapped around their bodies as racing uniforms, or else it could be their normal clothing. The prize at the end of the guinea pig run was a yellow block (set up like a target, surrounded by blue blocks). Baby Unicorn won the prize over and over because she is bigger and faster than Baby Goat, even though younger.
Baby Goat gave up the struggle and took a rest in the guinea pig run, wearing green clothes.