Reply to How can he do it?

Hey guys I have a little question.. You know Dj Shiftee.He is champion of DMC.

And my question is how can he do it on this video? http://youtube.com/watch?gl=US&clien...ldescription=1
in 3:00 he clicking the pad and you hear a kick.then he clicking more and kick replaying fast.Then he playing like a synth.how can I do it ?