[Android][Game][Free] Zombie vs Gunman, suggestion and feedback?

Hi guys,

This is an indie dev releasing his 6-month worth of hard work. While I spent all my effort to make it look nice and entertaining, I am desperately looking for real feedback from gamer like you guys. Please go ahead and have a play. Any feedback/suggestion is very welcome.

A few things I am interested in knowing in particular:

  • Is the tutorial well executed?

  • Does the game look attractive? Thus likely to drive download?

  • At what level do you start to feel bored? And why?

Download from Android play store: (scan QR code below)
https://play.google.com/store/apps/details?id=com.Lumosoft.ZombieGunman

more screenshots



suggestions anyone?