Hi Ana!! This was a really cute little game! I think the mechanic is really fun and works well, but it seems like there are no walls around the level, which could be an easy fix to help keep the player in bounds. I would also maybe change the death orbs to be like, death spikes or maybe a little drawing of an enemy - I thought it was a coin or something at first. It actually could be a little more challenging, I think. Overall, I thought it was really cute and fun, and it reminds me of playing "keep it up" with a ball. Awesome work!
Edit: You fixed the window size so I removed my feedback on it!