EMRos is this family of so-called World’s smallest autonomous self-propelled micro robots. Each creature is this tiny robot that can record and play back motions being guided by a flashlight.
Ricordo is 1 cm3 in volume and equipped with a recording and playback function. Rubie on the other end is equipped with capricious wandering function. Both were created by Epson in 1995, but I finally got to play with one today, and it is adorable! I found a web site that shows beautiful pictures of the robots as well as the nice packaging that hosts them!