You start with a basic gun and begin upgrading it by collecting stickmen. Each stickman you collect adds a part to your gun, making it bigger and more powerful.

You can earn cash by shooting barrels that appear during the game. This cash can then be used to further upgrade your gun or buy power-ups.

Yes, there are various obstacles throughout the game that you need to avoid. These can include environmental hazards, enemies, and other challenges that test your reflexes and strategic thinking.

Yes, Human Stickman Gun is optimized for mobile devices, allowing you to play on your smartphone or tablet for easy access anytime.

The game features many exciting and challenging levels for you to discover. While the exact number isn't specified, each level brings new challenges and opportunities to upgrade your gun.

There is typically an introductory section or tutorial within the game that guides you through the basics of gameplay, including how to move, shoot, and collect stickmen.

While the focus is on upgrading your gun, the stickman characters you collect are integrated into your gun's design. You don't have direct customization options for the stickman itself, but you can see them as part of your evolving weapon.

If you fail to avoid an obstacle or lose a life, you will typically restart from the beginning of the current level. It's important to plan your movements carefully to avoid these setbacks.