Upon discovering his power as the Kiba Ranger, Ko does some very naughty things. American parents would freak if this was shown on Power Rangers.
Also Ko's debut is filled with lots of these. Starting from groping Lin's breasts, THEN declare her flat chested. And in a latter episode, he oversleeps on purpose, trying to get Lin to wake him up... only to flip her skirt and declare that wearing grannie panties is not sexy at all.