This was quite a fun little take on the Pong game! Loved the variations / worlds that you came up with, especially enjoyed the ice one as it was a bit more fast paced! Collisions worked ok on my end, I'd say the more ennoying issue for me was that sometimes the ball would end up almost at a vertical angle, and take a full minute before it reached anything that could change its angle, making it a bit long to wait. Loved the music, and overall atmosphere going through the various levels. Good job!