Map3TapaKaH

Too hidden for me. I suppose that also the smaller panel must be removed but I do not see how that can be done.

@GFJ first enable free viewview if you dont. Thenlook in the 2x2 window (right-down)
Then step by step search new triger boxes and open more and more.. There is bug you can drag some cubes throw the walls ._. If my first hint dont help - write me and i can help you

@TapaKaH Unfortunately, your hint did not help. I gently pushed the two balls into the ditch and I found the slider inside the structure (in the left corner at the bottom), which enables B to enter the structure through the door. I assume that I now must move (push or pull) one of the metal blocks in one of the walls but I cannot find the right block. Am I on the right track?

Fun to explore! Thanks

Good puzzle box.