×I have to use the first mimic in the upper chamber to hit the orb,but first and in its way up,it has to help me with the first roach in order to lure it in the corridor down,because I think it's the only place that it will be safe for me(it has to be killed at the end,right?) untill I manipulate the second mimic in the other space
That's the part that confuses me more and I've tried every possible movements with no luck.I hope I was clear enough and correct me if my original though isn't the right one and the solution is different.

×Your approach has a flaw...

×You need to trap the roach in the upper-left corridor.