If he used the power of cockroaches, the whole page would be censored LMAOshudder Bug typhoon? No thanks.
That was something I like about this: he, along with presumably Iga as a whole, is a beast tamer. The Koga focus on becoming beasts themselves. The entire premise is basically that he "tamed" the Viper.Damn, Kotarou is friggin' OP.
He's basically turned the abilities of a Disney princess into a weapon.