I like the core mechanic - Simple and fun.
Controls also feel nice and responsive.
The sound is good too.
Now I don't know if it's my phone but the game lags after 10-12 points sometimes. I wouldn't worry too much about it since my android phone is crappy but still if you want to also target people with crappy phones, you will have to optimize the game more.
I haven't reached a score more than 120 and the gameplay was the same throughout so I would suggest to add more elements and if you already have more elements, add them before since I started getting bored after 10-12 games.
Overall, it's a perfect fit for the mobile market. Good Luck!