Partway into the season, the remainder of the 1985 product line was introduced, mostly through the two-part episode "Dinobot Island." These new characters, like the first year cast, were largely derived from Takara's "Diaclone" and "Micro Change" lines, including new Autobot car and mini-vehicles and Decepticon jets and the giant Autobot sentinel Omega Supreme and Decepticon "Triple-Changers" Astrotrain and Blitzwing. To expand the line, however, Hasbro also licensed several toys from other companies, including Takara's Japanese competitor, Bandai. Legal complications that arose from incorporating the first of these, Skyfire, into the first season resulted in the character quickly being phased out early in Season 2 and meant that none of the other Bandai-derived characters featured in the series.