Its a lot of fun. Tried it on android. It's so hard, though >.< Personally I would prefer it to start slower, but I don't know what others think.
Also, I think where people are getting confused is in the tutorial you say to match the two shapes, but it's not clear that you mean the two different shapes on the screen. Maybe show all 3 matching possibilities at the same time so people can see that it's not straight up matching shapes?
Anyways, great sound design and cute graphics. It's a nice game :) I like it!