Older movie about a group of kids and a bunch of monsters on the loose.
There is a scene where the little fat kid is eating a twinky and he drops it in some water. Then some kind of swamp moster eats it. I think there is also a mummy, a vampire,and maybe a frankenstien.Each little boy runs into a different monster. And then they fight them all together. I think it starts with a scene where a couple of the kids sneak out onto their roof to watch a scary movie playing at the drive inn or something.
