usually these types of levels aren't well-liked -- the reason being that it has been done so many times alreadyu and the steps require patience, which many people don't have anymore. The tileset aside, the empty spaces could have been filled; perhaps a laser drone would've done oit. I would advise /not/ to put door switches under the drones or mines or stuff like that cuz people will frustrated and will complain. It may be possible, but in these days people are too lazy to go for it.