[solved] to balls that hit each other but then you click attack to win.

[Ruduen]

From what I THINK you're saying, the best method to do something similar is to include a link back to the first frame of the technique whenever you hit the attack button so jamming it faster will get a repetition of the attack faster. However, I'm not sure if LF2 can support only that happening whenever two attacks collide, and it would enable it to happen under normal circumstances too.