Does anyone know how to make a code system with pop ups?

[Cellofive]

Here’s a guide on it

How to make a working 4-digit code! Difficulty: 3/10

When I was looking around the forums, there was many code options, but no 4-digit codes, so I went ahead and made one! What is a 4-digit code? A 4-digit code is a code that many locks use. Think of it like a “bike lock” so that no one will steal your bike, or an escape room code, so that you won’t be able to progress further until you know the code. What you can use with codes. With codes, you can use many things! In real life, they are used so that people won’t get into stuff, or just for a…