Yes.
Can predator drones fly in narrow spaces, small pipes, complex mazes?
http://www.avinc.com/uas/small_uas/wasp/
Check out this AeroVironment UAV. Also, have you read about the 6” UAV’s the size of a bluebird and that can perch on wires or fly through an open window and into a building with live cameras?
We are so far ahead of that hokey helicopter, especially since this is fake.
We are also developing weaponized drones that can fly into an individual person, guide by a camera...