I really don't like how incredibly easy is it to fall off and have to do the entire fight over again. In Phase...2? the one where you shoot eggs at her at the edge, sometimes the hitboxes will still hit you behind the wall, and if you go out to shoot her, and she hits you, 99% you fall and die

I've had that happen a few times but for me the most annoying part historically has been powering up the Jinjonator. I either misaim and waste time or get greedy and hit. Instant KOs like falling so suck if you're running into it a lot are much more annoying though.