Nightmare Fuel / Street Sharks

• Every. Single. Transformation. The transformation sequences are very painful to watch, since the transforming person is nearly always screaming in pain as his face and body change in a disturbing way. What happened to the Bolton brothers is really creepy.
  • To specify what happened to them: First, they find out that their dad has gone missing. For all they know, he's been killed. Immediately after, they're kidnapped by two horrific humanoid fish mutants and taken to a lab, where they are given injections of something or another, which seemingly kills them. They wake up in a sewer drain and, after a brief cooldown period, painfully turn into humanoid fish mutants themselves.
  • And then they kick some serious fin!
• The Street Sharks themselves aren't very pleasant to look at, being mostly shark heads and mouths with no neck and grossly outsized torsos. But on top of that, they cause massive property damage in their battles against Piranoid, including wrecking entire buildings, and don't show much remorse for it. Small wonder the citizens of Fission City believe they're "just no good".
  • The second episode, "Sharkbite", has the Street Sharks act very intimidating towards Paradigm, threatening to cut him open like he was going to do to Big Slammu. Granted, Paradigm had it coming, but imagine being on that table yourself and having these things looming over you. And then there's this gem:
    Ripster: Lesson one on sharks: great whiles are ''always'' hungry.
    Paradigm: You can't intimidate me!
    Ripster: Oh, yeah? (bares his teeth)
• Jab nearly dying from Killamari's poison darts in "Lone Shark".