Click on the screen to start your mission in Riffle Assault. Utilize the control pad to guide your character through the trench. Align your rifle by moving your finger across the screen to target enemies. Press the attack button to defeat opposing forces. Pick up coins and power-ups to improve your weapons and abilities. Keep an eye on your ammo and health bars to stay alive. Move forward through multiple levels, each with distinct challenges and enemy behaviors. Think ahead your moves to outsmart the enemy army and attain victory.