Tap on the screen to launch your mission in Riffle Assault. Employ the joystick to move your character through the trench. Aim your rifle by moving your finger across the screen to target enemies. Click the attack button to eliminate opposing forces. Gather coins and power-ups to upgrade your weapons and skills. Monitor your ammo and health bars to remain in the game. Move forward through various levels, each with specific challenges and enemy patterns. Plan your moves to defeat the enemy army and achieve victory.