 Like the previous installment , Sinistar : Unleashed focuses on the destruction of the Sinistar , a large bio @-@ mechanical machine , powered by machines called the Sporg . To achieve this goal , the player has a variety of starships , power @-@ ups and weapons . Unlike its predecessor , the game has full three @-@ dimensional graphics and a wider control scheme . Sinistar : Unleashed features 29 levels , five of which are hidden ; each level has a Sinistar . 
