Move your mouse and your character will follow you. Avoid the purple circle's clones, as you will lose three points. If you touch the blue circle's clones, you get a point. Once you get to more than 20 points, you win! But if you get less than -20, you lose. Good luck!
You can make your own version of Circle Wars if you look in 'Coding Games in Scratch' by Jon Woodcock. This is where I got the game from, so thanks to him. Sorry guys, when the game ends, the purple and blue circles will still follow you around even when you've won/lost. So it would be best to turn the game off as soon as you're finished. I will try to fix this. Remember to love and fave, and feel free to remix!