Alpha version of my deceased mobile project

Mobile game prototype I made using Unity and Playmaker. Top down shooter. Super light and graphically optimized. Alpha version! Project is closed and forgotten, because I'm not a programmer, Playmaker caused some freezes which I couldn't solve.
APK file to try (for those who not afraid) is here : https://drive.google.com/open?id=16LOhBClfuyaOYt8U6p5U1jF5fbT7UXEF