Later, another girl's boyfriend is feeling her up in the water, and this makes the humanoids really horny, so they kill another twerp, and rape another girl. I think you can probably figure it out. Back to the main plot. The movie's climax comes at the Salmon Festival, a carnival where humans and humanoids alike meet to share a few memories. The humanoids show that, while they are not smarter than average humans, they are quite a bit smarter than carny folk, and smell a lot better as well.
Dental care is about even.
The monsters rip off the bra of the Salmon Queen before chasing her through the midway. Then the monsters stop for some cotton candy. Not by salmon alone does man live. Then they head over to the midway to play some carny games. He really gets steamed when he realizes that those other monsters were audience plants, allowed to win by the carny barkers in order to sucker in the players.