The screen looks too busy with so many arrows pointing up and down, don't you think so? O.o Well, maybe this is the only place where there are so many at once, but perhaps it'll be enough of a sign for the player if you turn them all into dots. Or here's another idea, why not showing something like this "<->" in the gaps instead? ...Anyway, I'll join you with the "Yays" ( ' v')/ -Yay!

Thanks you, AE! I've been thinking that there were too many but hadn't come up with a way to get rid of some. ^.^ And I'll change the opacity.

Edit: Opacity and arrows have been changed. Looks much better in my opinion. ^.^