Need a js script for google chrome

I am looking for a JavaScript script for Google Chrome that can extract data from a specific website

Functionality:
- The script should be able to extract data from webpages
- It should automate the task of extracting data from the specified website

Website:
- The script should be designed to extract data from a specific website that I will provide


Skills and Experience:
- Proficiency in JavaScript
- Experience with Google Chrome extensions or scripts
- Knowledge of web scraping techniques

Please note that the script should be compatible with Google Chrome and should be able to run smoothly without any issues.
The script is to hack a game.