Many of the show's earlier bumpers have been remembered as quite terrifying to young viewers, who are now old enough to use TV Tropes.
* The one most commonly cited seems to be [[http://www.youtube.com/watch?v=5I-5bBNmRY0 the "Pinchface" bumper]], which features floating dentures with floating eyes and glasses, which screams, "NICKELOOHHH- DEE- AAAAHHHHHHN!!".
* [[http://www.youtube.com/watch?v=xfbp8oI66Mo The "Compilation" bumper]] features characters and scenes from a lot of Nickelodeon's even older bumpers. There's so much weird noises and crap flying at you that children are likely to at least be profoundly creeped out by it.
** YMMV on that, it's very nostalgic.
* Face, the old Nick Jr. mascot, is somewhat unsettling. He's essentially a talking face that takes up the entire TV screen and makes weird faces and sounds.
** Once again, YMMV. This troper loved Face as a kid. In hindsight, though, that thing was undeniably freaky.
* [[http://www.youtube.com/watch?v=fdppYlhxltw Inside Out Boy]] from the early 90's bumper.