Gun Run is a 2D auto-shooter worth trying. The game has simple but addictive gameplay, unique pixel art, and lively sound.

Gun Run is a retro-style 2D auto-shooter with unique cartoon art. In the game, you play as a muscular man, destroying all enemies on the screen. You can use various weapons, from pistols, and shotguns to machine guns, to take down enemies.

The gameplay of Gun Run is simple. You just need to control the character's movement with the arrow keys and shoot enemies by tapping the screen. However, the game still has a certain level of difficulty, as enemies will become stronger over time as you progress.

// Option A //

To download Gun Run: Realm of Devils RPG mod from HappyMod.com.
You need enable the option "Unknown Sources".
1. Click on the above link to download Gun Run: Realm of Devils RPG mod APK.
2. Save the file in your device Downloads folder.
3. Now tap on Install and wait for the installation to finish.
4. Once it is done, open the game and start playing it right away.

// Option B //

To download Gun Run: Realm of Devils RPG from HappyMod APP, you can follow this:
1. Open your browser and download the HappyMod APK file from HappyMod.com - the only official website of HappyMod.
2. Open Android Settings and go into Privacy or Security.
3. Tap the option to Allow Unknown Sources and enable it.
4. Go to your Android downloads and tap the APK file.
5. Follow the directions on the screen to install it.
6. Search Gun Run: Realm of Devils RPG in HappyMod App.