Hi!
Your game has some good approaches, but here's what bothers me.
I would have made the platforms "OneWay Platforms". That is, you can jump through from below and not from above.
Also, it's annoying when you get stuck on the platforms.
Both can be easily done in Unity with the "Platform Effector 2D".
I think the goal is to stay alive as long as possible. However, this is not particularly difficult, since you can simply stand on some platforms and permanently get your HP refilled.
Here I would have wished for something more. For example, that after a red ball you can only be hit by a blue one and vice versa.
Sounds like a lot of criticism, but that doesn't mean I think your game sucks. It just has some weak points which hopefully you can improve in your next games.