One striking difference between the Brave Series and Transformers is that very few villain robots were released for the former. This is in sharp contrast to most of the Transformers series, for which heroes and villains were and are released in relatively equal numbers (with the exception of Zone and Battlestars). Generally speaking, the lack of villain toys is more the norm for such toy lines in Japan, with the various Transformers lines (save for aforementioned two) being the exception there rather than the rule.