The aliens have invaded the Earth's subsoil! All Rangers are called to battle to help restore peace. Choose your hero, your weapon and your favorite mecha to clean up the mess Guns of Mercy is a pixel art shoot and arcade game in which you have to go through hundreds of levels. Get rid of the 8 bosses in the game. Unlock and upgrade new heroes, weapons or mechas to increase your destructive power. Play solo or invite up to 3 friends to take part in the fight! Who will be the best?