So I read the posts from 8 years ago, read the hints, even found a walkthrough on jayisgames. Unfortunately nothing has helped me figure out this level. I then contacted support and was ensured that I could necro this thread. So here I am.
My situation is exactly like it's been stated previously in the thread. I can easily kill off all eyes and queens, but my mimic always ends up on the right side, with a few roaches left to kill and a gap between them, so I can never get next to them as they flee from my main avatar.
At most I can move the mimic underneath the rightmost queen, but no roaches then spawn on the right side, so I don't get any roaches that can help me move left.
I have even tried finding a Youtube walkthrough of that level, but to no avail. I am at my wits end, and hope someone will just put me out of my misery and just straight out spoil how to complete that level, because after hours of staring at the level and moving about, I just can't figure it out.