This was lovely! I really liked the banter, though some of the speech bubbles ended a bit too quickly. I like that there's variety in the levels, each one had a twist that I felt added to the complexity and enhanced the overall experience.
I think the throwing levels should probably have a limit on how many you can throw, otherwise the player can spam and win by sheer volume :P Though it is very fun to fill the screen with infinite bouncy balls.
Overall, great work!