Later versions of this game is now available at https://scratch.mit.edu/projects/714934217. The original v1.0 will still stay up, however. The first version of the remaster of the original 3 defender games are now done! There are more content planned though. V1.1 has mini balls, V1.2 has special balls, V1.3 is going to have powerups and possibly the randomizer item. An alternate mode is also planned. There are 28 balls right now, so I'll explain the ones that aren't obvious. The lost target isn't affected by your paddle, and the only way to destroy it is to click on it. The bomb is pretty much the opposite of other balls, where you have to avoid it and let it pass on by. The mine (large cyan/teal circle that bounces around the screen) gives points over time, and you have to avoid hovering your cursor over it or you'll rapidly take damage.
This project is based off of the 3 of the original defender games I've made on a different coding platform. The sound for the lost target came from Raymond852.