Sub-Series: KO Transformers
Similar Series: Hasbro Transformers, Takara Transformers, Hasbro Universe, Miscellaneous, Pre-Transformers, Tonka GoBots
Subgroups: Action Masters, BTS, Cassettes, Causality, Combiners, Communications, Crossfire Combat Unit, Exclusives, FansProject, Humans, Impossible Toys, Mastermind Creations, Parallax, Quintessons, Watches
Years: 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012