That's a pretty tough room, here's some advices:
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× As you said, after killing 4 queens you gets overwhelmed, and as far as I know there's no way to end the room like this so you must find a way to repair yourself
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× The rattlesnakes can be a good repair but they'll kill you if you don't do something to transform them in your ally.
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× You said that you killed 4 roach queens, what's underneath those queens?
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× The chechpoint at (31,11) is very useful to avoid too much trial and error
Hope it helped
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There's not some other world out there where everything's gonna be okay.
There's just this one, just this rock.
-33th Skywatcher
