Badly designed.
have very poor eyesight, and I know you were going for a red theme here, but this was very badly designed. Here is my critisisms on it:
The colours. All the reds are far too samey, making it difficult to see contrasts, especially in game.
The Arrows: All on one line. I know you're tyring to rip off DDR and GH at the same time, but having them in one single line doesn't work, and having them on the same path makes it even worse, and whats even more, because of the colours, the outline only comes bright at the last second, making it nigh on impossible to know what the arrow is in time for it's arrival.
The framrate: It's too low for a game of this type.
Rethink your design, have multiple lanes, and it might be better.