You-aint-got-rythm...
You obviously have no concept of Dance Dance Revolution. The reason why people who, like myself, are able to play songs on heavy and challenge mode is not because we follow to see when the arrows hit the marks at the top of the screen. It's all about a sense of rythm, which you obviously do not have, nor did you take into account when making this. I strongly suggest that you keep this in mind for future games, as well as if you decide to play the real version yourself.