Gun Merge: Mr. Bullet is a fun shooting and merge upgrade game where every shot matters. Take down enemies using a single bullet if you miss your target, it's game over! Defeat each enemy to climb the stairs and face the next challenge, battling your way to the powerful boss waiting at the top. Beat the boss to unlock the next level and continue your adventure. Between missions, strengthen your firepower by purchasing new guns and merging identical weapons together to create higher-level firearms with greater power. Test your aim, upgrade your arsenal, and see how far you can climb in Gun Merge: Mr. Bullet, now available to play for free on AEHEA.com.