Follow the below steps to know how to hack in roblox.

Start by researching the game Roblox and its coding. Learn the basics of the game and its programming language, Lua.
Create an account and log into the game. Familiarise yourself with the game's mechanics and explore the different levels and features.
Download a game hacking program. These programs allow users to manipulate the game's code in order to gain an advantage.
Use the game hacking program to modify the game's variables and settings.
Test out your modifications and see how they affect the game.