To begin I'm a big enjoyer of rhythm games. I've played almost everyone (that's free) or have watched some so I came into this with high hopes... And it definitely went higher.
It feels a lot like Veoz or voez (how ever it is spelled) with the lines moving and the color changes, And oh terms of paying money it was a $1 for 20+ songs.
I also just found out it's been out for two years. And unlike most rhythm games you don't have to press on the circle for the note to be hit, you can tap anywhere on the screen so that's a plus for people with big hands. The only complaint I have is that I think one of my songs is broken cuz no matter what I do I can't get it right which is stopping me from getting an 'all perfect'