It has a slight glitch so you might have to press the green flag twice. Move the mouse up and down to control the bat. The aim of the game is to dodge the balls, surviving for 25 seconds. Use the space button to activate your needle, but be careful, you only have five. If you see a flying blue stick, be sure to collect it, it's your spare needle. Enjoy!
I'm new with scratch so not everything will be perfect. If there are any problems, please show me in the comments, I'll try to reply to most of the questions. Please favourite/love Bat dodgeball! : )