I just finished the level! I didn't know if there was anything after that but it was pretty cool, and I love games that revisit familiar gameplay mechanics.
I noticed something about the difficulty that I typically would expect to increase gradually, but actually decreased as I destroyed blocks, because the remaining blocks are further away from the paddles, giving me more time to react and making it easier to predict the colors.
Overall the game was challenging but in a fun way since I got better and better at the mechanics, and the visuals were great!