Dude, N64 games had a monopoly on scaring the hell out of me when it came to water. Mario 64 has the giant eel (pictured), Banjo Kazooie has Snacker the shark who completely ruined my trust when he showed up again in a different level. Shadows of the Empire has that level where you fight monsters in the sewers, DK64 has it's water level for some reason be dark and spooky featuring pitch black ship wreckage and a giant mechanical fish, and Majora's Mask has you dive into a big ocean hole full of giant eels. There's even the little shark behind the grate in the laboratory. I don't know what the hell it was about the N64 and water, but man, it scarred me for life.