The Giant Ghoulie was a cannibalistic man-sized demon, which resembles the Fish Ghoulie, summoned from Hell by Sir Nigel Penneyweight to eat the ghoulies. It ate the demons, except the Fish Ghoulie. It went after Sir Nigel, thinking he was a demon. Our heroes hid in a trailer. The Giant Ghoulie pounded on the trailer, until Larry placed Sir Nigel's costume outside, stuffed with explosions. The creature ate it and exploded into a cloud went back through the portal.