//functions
void Fire()
{
GameObject Temporary_Bullet_Handler;
Temporary_Bullet_Handler = Instantiate(Bullet, Bullet_Emitter.transform.position, Bullet_Emitter.transform.rotation) as GameObject;
//rotation of bullets
Temporary_Bullet_Handler.transform.Rotate(Vector3.right * 90);
//Retrieve the Rigidbody component from the instantiated Bullet and control it.
Rigidbody Temporary_RigidBody;
Temporary_RigidBody = Temporary_Bullet_Handler.GetComponent <Rigidbody>();
//ignore collision between bullets and box collider from enemy that shoots bullets
Physics.IgnoreCollision(Temporary_RigidBody.GetComponent <Collider>(), enemy.GetComponent <Collider>());
//send bullet to player
Temporary_RigidBody.AddForce(transform.forward * 2500);
Destroy(Temporary_Bullet_Handler, 1.0f);
}