although i wasn't able to beat level delta, i believe i have a firm enough grasp of this game to review it. everything here is simply amazing, the mechanics are well conveyed to the player and then just built upon perfectly. the only real critique is that the UI is lacking in shocking juxtaposition to the beautiful effects shown here. the thing that really brings it over the top for me though would have to be that there's an undo button, which is so incredibly useful. truly well done.