Here are a few tips that helped me get through fireworks!
•use a mouse if possible!
•for the first few levels, focus on getting as close to “flawless” as possible. this means waiting til the last possible moment to hit the firework.
•when the levels become more complicated, really pay attention to the combos they introduce at the beginning of the level. It doesn’t matter too much if you miss other fireworks or don’t get flawless, but these combos are a great way to rack up points quickly.
•personally I like playing with the music because it helps with memory and timing. I think the firework order and placement is always the same, so after a few play-throughs you know where to anticipate the fireworks.
•you are going to miss fireworks especially at the end. don’t beat yourself up about it! it’s not an easy mini game and you’re not alone.
•remember to take breaks (:
Good luck!