Reply to beat masher

Hello.
I have got mine "beat Masher ".
Thanks. It went faster than I thought.
But where are the operating instructions?
What do the keys make in "Shift mode" ?
And how function "Super Kombos" ?
No explanation(statement).... nothing.
I am really irritated. It use to me nothing if Mr. Golden points in the video like, however, he "beat Rolls" makes nobody explained(declared) like one this puts(stops) goes.
thanks

(sorry for tjis bad englich,,,,,,) i am german