Am I being really dumb here? I am sure I have to
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×use the mimic to get the bug in the lower part that is trapped in the two force arrows
and then
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×get the mimic into the "trap" at the bottom formed by the yellow doors (I can't use Beethro himself in there otherwise he gets killed
But the trouble is
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×I can't get the mimic enough squares away from me when I close the bottom door.
I have tried
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×using bugs to move him further away from me but I haven't managed to work it out yet
All thought suggestions and downright give aways gratefully accepted!!