Thanks for the review, I saw your video and I'm glad it's the first time you've posted my game on YouTube. I'm also surprised that there's another Brazilian in this game jam.
About the ball colliding, the ball can't go over, otherwise it would be too easy to defeat the enemies on a wall nearby, and about the platforms moving, it was a bug I decided to add so the player could think about what position the blocks should be in before going over.