Pretty complex so if you transformed, you need to get used to her form, she attacks when moving side to side or up to down (clicking her main body side, not the whole snake part), lamia movements is zig zag and when moving in one line movements, she get pretty slow, so don't get into tight spaces, though if you coiled yourself, you're pretty much invincible and take barely any damages, so I guess this is why the dev said it's difficult working on the lamia :V