The good news is, despite the gacha system for unlocking characters, the game doesn't demand any Robux—the premium currency of Roblox—meaning it's completely free to play.

An update to the officially licensed Sonic Roblox game, Sonic Speed Simulator, will add a highly anticipated character in a new event.

Developed by major Roblox creator Super League, it's essentially a light RPG featuring the music and locations of the musical, in which you collect the cast as companion characters who follow you ...