// Used to destroy surrounding area
public void Bang()
{
Explosion ue = up_explosion.GetComponent <Explosion>();
ue.Blow_Up_Walls();
Explosion re = right_explosion.GetComponent <Explosion>();
re.Blow_Up_Walls();
Explosion de = down_explosion.GetComponent <Explosion>();
de.Blow_Up_Walls();
Explosion le = left_explosion.GetComponent <Explosion>();
le.Blow_Up_Walls();
StartCoroutine(Secondary_Timer());
}