You as a stallion, is dragged into Canterlot Castle in the midst of the night; Nightmare Night. Your good friend, Twilight, presented you with an experiment in which you are asked to test, hands on in the field; the Ghost Buster 9000! A few unexplained events that occur leave you to do what everybody else would do in this situation of unexplained situations.
-- Happy Halloween! --
they probably blew up