Robotman, was an extremely revolutionary item in the toy industry of the 1970's.  Created by Takara in 1975 and marketed in Japan as part of the Microman line, it was one of the first 'transforming' robot toys.  A cockpit in his chest allowed a single Microman figure to ride inside while the 14" motorized giant marched toward it's enemies.  Robotman could also be taken apart and turned into various vehicles and modes.

In 1976, the American toy company Mego acquired the license to sell the Microman toy line under their own brand name, the Micronauts.  Robotman was one of the figures included in the 1976 Micronauts line-up, however his name was changed to Biotron, which in my opinion sounds a hell of a lot better than the ultra generic Japanese name, Robotman.

Since both Takara and Mego were advertising their own versions of the toy at roughly the same time, it's interesting to see the original television commercials and compare how differently they advertised the exact same thing.

Which one makes your inner child burst with excitement?