The letters of the words are mixed up vertically by column. Shift the letters up and down to form horizontal words. Click an up or down arrow to shift a column. Once all the letters form a valid word horizontally, they will turn GREEN. Click on any letter to LOCK it in place so it cannot be shifted. Click a locked letter to UNLOCK it. Lock or unlock an entire word by clicking the LOCK on the left side of a word. Get GREEN and you will the game