her 3K also goes under 6H, so be careful when trying to release heat.
Air fight against her is hard. Try poking her from a safe distance with j.H, so she won't counter you (probably) and do the whole loop stuff (Robo-Ky still takes A LOT of damage from that). Also, like it was said, punish any 3K that went wrong: I like to punish that with a j.S. Doing it right will result in a counter hit (ground bounce \o/), which can follow in a 5K, 5S JI, j.K, j.S, j.P, j.S, dj.S, j.H, air missile.
Also, another good opener is f.S. doing it right cancels the horizontal dolphin attack