Like YouTube, Roblox started as an online stage for young creators. As the company grows toward 100 million active daily users, contributors are making big money selling games.

Both franchises already have a presence on Roblox--SpongeBob is included as part of Nickelodeon's Nickverse game, while TMNT has a game called Turtle Trouble that launched in 2007.

The Super Bowl is coming to Roblox as part of a push by the NFL to attract new fans, featuring football content in SpongeBob and Ninja Turtles metaverse games.