The achievement "Do It" is an annoying grind so here's how to do it without having to have a decent aim. Might save a bit of time to all fellow completionists out there. Don't mind the cover image, I had to put something there.
How to Obtain Do It Achievement
How You "Do It"
In order to do this, you're gonna need some junk. Pile up the junk as seen on the image below, the bottom of the basket needs to be fully covered by an item of junk for it to work.
Then, press the Basketball button for the balls to come and take one ball with you.
Climb on the rock behind the basket from the left side, it might require sprinting:
Jump from the rock to right behind the basket:
Climb on the panel and crouch, put your ball in a position where the only thing you have to do is double clicking:
After that, you just have to doubleclick and let the ball bounce twice before double clicking again.
Now you just have to repeat this process until you get 500 points.
This method has allowed me to earn more than 80 points on one round of basketball so repeating it around 7-8 times should get you the achievement.