If you are playing , you can use active promotional codes to gain rewards like chows and skins without risking your account. 1billion: Redeems a unique "U chow". race to win: Redeems 100 race tickets. my Valentine's: Redeems the Valentine's Amy skin.
If you are building your own Speed Simulator and need to script the mechanics yourself, you can use legitimate methods in : Speed Simulator Script – Inf Speed | Inf Money
Use Humanoid.Running events to reward players with points or speed every time they walk. Roblox Studio: How to Make a Speed Simulator | FULL SERIES If you are playing , you can use
To redeem these, open the menu and click the Redeem Codes button. Third-Party Scripts (Exploits) If you are playing