You can adjust the account settings to restrict the games that can be played based on the age rating. There isn't a specific setting to block scary games. The best approach is to limit your child’s account to all-ages or 9+ experiences only with Parental Controls, and to actively monitor what your child is playing on Roblox and block any game that seems inappropriate. Encourage them to speak up if they find a game disturbing. Reporting inappropriate games also helps Roblox in its moderation efforts.