Ok, let's assume you are placed in the position of Simon, during Castlevania 1, but this is real life, and you have to have your wits about you. First of all, I would not assume i could whip a zombie very well, but if i could, assuming it died in one hit, I would most likely make it to the fucking merman... except that they shoot water so thats not too bad, and I likely could swim back to the ledge if i fell off the platform. Man I dunno, maybe im giving myself too much credit, but I would most likely get my shit handed to me at the room with the spikes from the ceiling and ghosts.