1. Remix 2. Go Inside 3. Edit the information on the first backdrop 4. Go to 2nd Backdrop 5. Choose a fitting difficulty (Can't Use Special Difficulties) 6. Set Difficulty on the 1st backdrop to the chosen one on the 2nd 7. You're done!
Find the Stickmen: https://scratch.mit.edu/projects/1044504110/ Please Note that your stickman may not be added, and I may edit the difficulty if I don't think it fits. Also I will add a description if you didn't.