I thought up some tips as i was playing works on house 101 and the 2nd one best

1. first of all gather everyone downstairs
then place a boo at the top set his power on the highest you can and look on the list and go on commands set it so that he will only use them if he sees a mortal

2 put a spider in the room where the stairs come down and set its power so that the swarm
allover

3.place a "shivers" in the living room or dining room then place the rest in wherever you think is necessary just only leave them one choice ..... THE DOOR