They're supposed to bounce just high enough to get under if you time it right (similar to the original Pang, that was one of the challenging parts). I'll probably add in a difficulty option that adjusts how high they bounce.

A few things (it's been a while since I've looked at Bounce) - It's coming along incredibly! Great work man! - You don't need to give me any fine details but I'm curious, what is the concept behind the "glowing trail" effect? - That recent comment about threads got me learning about multi-threading, thanks :D! - Not rushing you but I can't wait to see the finished product (and source code, but that's up to you :D)!

OOH I like games like this :D! Good work! Bonus challenge: Make a LAN version :D