In Aliso Viejo, Calif., Harper Deal, 9, has been watching television, scrolling through TikTok and decorating her house for Halloween. She usually plays Roblox with her cousin who lives out of state.

Roblox is an online game creation and game platform system that allows players to create and modify games on their own. Following the same, ItsFunneh and Jelly tried to create the best versions of ...