Click the green flag. A crazy version of this nick logo (with the 1987-1989 audio) may be seen a lot if the Misadventures of Jazzy and Kitty aired on Nickelodeon.
The font was Gloria (Scratch Font) because the original splat had the a font similar to the scratch marker font. FUN FACT: The audio from the bumper was extracted from the "1985/1987 Top of the Hour" Bumper. I guess somebody at Nickelodeon found that specific bumper in their archives. XD