Very little download of my poor game

Hi guys,

I've published a simple game, where you tap on the screen to shoot monsters.

I've put a lot of treats and fun factors in the game. The visual & audio feedback (when you shoot the monsters) were carefully crafted.

BUT

I was so disappointed that I got very little download. Would you mind playing it and give me some feedbacks?

The URL are:

APP STORE https://itunes.apple.com/us/app/lab-outbreak-tap-to-shoot/id1086339853?mt=8
GOOGLE PLAY https://play.google.com/store/apps/details?id=com.nz.arrows.android

Thanks guy!