Libble Rabble (リブルラブル)

An obscure Namco release, Libble Rabble was designed by Toru Iwatani after his huge success with Pac-Man. Although it was not particularly popular, Iwatani claimed that it was his own personal favorite of the games he designed.

The game uses no buttons -- only the two joysticks -- one to draw a red line, the other a blue line. The goal of the game is to draw these lines and corral the mushrooms on the screen of each level (referred to as a "season").

There are enemies to contend with in the form of furry creatures and “cutters” who will cut your lines and force you to start drawing anew.