Robot Guns Revenge 3D app for iPhone and iPad

Robot Guns take revenge from earth and charge on humans. Humans can kill the gun if they touch so gun can survive from human and take revenge.
Shoot humans to earn points and unlock new guns having unique bullets.
Game played in a street, road and other beautiful place.
This game has two modes on shooting mode and second mode is merge mode.
In merge mode you have to merge same type of knifes to make a new knife and this process begins. Every knife has a damage rate and a power level.
You have to merge knife with same power level for creating a new one.
From each knife you can play another game to hit different planets. You will have limited knifes to complete the progress bar in the game and move towards new levels. after 2 to 3 levels a boss will come, by hitting knifes to boss you can defeat that boss and earn coins.