For a brief period in the first season, the show experimented with pouring chocolate syrup, orange slime or yellow slime on the panelists instead of the usual green slime.
Kevin Kopelow, Amanda Bynes, Danny Tamberelli, and Irene Ng are the only panelists to have appeared in all four seasons of the original 1990s show.
A contestant in the audience had an opportunity to win a prize if one of the panelists performed the Secret Slime Action. In the first season, these were more elaborate prizes, including video game systems. In subsequent seasons, it was smaller Figure It Out themed prizes, including shirts and backpacks.
The show used significantly less slime in the first season compared to the second, third and fourth seasons.
In the first season, the first prize won by a contestant was typically a piece from the set of another Nickelodeon show, including Legends of the Hidden Temple (which was cancelled in 1995).