Don't let the balloons get to the top of the screen, touch them with your mouse to pop them.
This was a very quick game that I made in a few minutes, so I don't expect a big outcome, but if you could, please like, favorite, and follow me. Check out my new studio, please. https://scratch.mit.edu/studios/27392660/ It is a contest studio, with a new theme next week, and there are prizes.