I got challenged to do this by my friends so uhhhhhh
Event he Inspect Element thing doesn't work. As soon as you go onto another page, it gets your amount of Robux back to normal, and if you do it while being on the page of the item you want Robux to buy, and just press the button to buy it, it doesn't allow you to buy the item, because the site knows that the Robux is not legitimate, There are no hacks for Robux. Either buy Robux or make a game and sell gamepasses for it. I'mt trying to make a proper game right now to earn Robux instead of leeching from my mum. It feels better earning Robux from gamepasses, as you know that your game is worth being on the website. It isn't a waste of the Roblox team's money and people actually enjoy the game enough to play it multiple times. Leeching off mum feels bad because it means I have a lack of skill building and scripting a decent game. Also, it shows that I can't be bothered to learn how to make games. I like learning stuff and challenging myself, Instead of taking the easy routes and being bored on Roblox. You can only live a playing-only lifestyle on Roblox for such a limited amount of time, before you end up getting bored of the game.
