Isoball X1 is the most difficult game of the series. You’ll have to outdo yourself and fire up those grey cells, displaying logic and thought as you play. Your aim is still to get a ball through a black hole, using the different blocks and attaching them together to build a path to get your ball to the right place. The game will have you racking your brains throughout all of its 36 levels. Will you manage to complete them all?