Ah well
I would say it was a nice try.
I did not found out why you could walk around or even jump, because i could not get any profit from it, all I had to do was standing there an pressing "space" at the right moment, to hit the ball, having this as the only thing to do..the game is quite boring, als well as the "Home Run" voice becomes annoying after you her it twice o.O.
Maybe if you could add a reasonable use for walkin (e.g. make a platform game) the game would be more interesting at all.
and I honestly have to say, that I have no clue how this one got on the frontpage..sorry but...