High Quality Content by WIKIPEDIA articles! Micromasters is a Transformers subline composed of small figures that came packaged in groups and with bases that interacted with the figures. They were sold at the peak of Galoob`s Micro Machines craze and were packaged in groups of four just like Micro Machines. The Micromaster Combiners sub-line was made with a similar gimmick to rival Matchbox`s Connectables line.