Start Project Butterfly on Roblox. Notice the many icons at the top of the screen. Select the cogwheel icon, which is next to the question mark. A "Promo Codes" section can be seen in the Settings ...

Start Moto Trackday Project on Roblox. Click the Codes icon (1) on the left side of the screen. Type in an active code into the code text box (2). Click the check mark (3) to redeem your code.