I really liked this entry, I can see it being a full game. As far as criticism, I know you ran out of time from your devlog, I think the amount of content you had was totally fine for a jam. I'd would love to see this game again with more feedback during normal play. There is some great juice around pivotal moments but the majority of gameplay could use a boost. I also couldn't really tell what the powerups did, so they felt effectively random, maybe having some animation or call to action on what they did after the new level loads? It also seemed like I wasn't really able to control the ball as much with how I moved my paddle so it was mostly just trying to keep it alive, and some points it became impossible to catch the ball and survive which was a bit of a negative experience as a player. I really liked it and say these thing bc I think this idea could really go far. Great work esp in the even shorter time span you worked!