 Like its predecessor , Sinistar : Unleashed is an action space shooter video game . While the original Sinistar features graphics and gameplay in a two @-@ dimensional space , the sequel features three @-@ dimensional graphics and gameplay , giving the player the ability to maneuver and roam freely across six different axes . Sinistar : Unleashed features 29 levels , five of which are hidden as a bonus ; each level has a Sinistar . The bonus levels are timed missions that involve destroying or protecting a particular object . 
