How to Redeem Codes in Noob Tower Defense. Fortunately, it’s very easy to redeem coupons in Noob Tower Defense. In fact, the process is identical on mobile, console, and PC versions of Roblox.

Launch Noob Factory Simulator through the Roblox Player app. Click the shopping cart icon to access the in-game shop. Scroll down to the Codes box and enter a working code in the text box.