[Usagi]

In the game you play a black haired guy who builds dolls. The building goes up and the dolls come down to the bottom. You use conveyor belts to guide where the dolls go and at the start they are all one color.

As the levels progress you have to color them yourself and eventually add heads onto the body yourself with a selector.

Your adversary is a hamster or gerbil <forgot which> that changes the colors around. You can be rid of them by sucking them up with a vacuum cleaner for a short time.

Hope someone knows what I'm talking about as I feel I'm going crazy.