TRy making a 5 letter and a 4 letter word in the bottom then make a word using the 2...this will annihilate many tiles. Also try getting rid of the ghosts first and the tile that makes up the ghost...The ghost won't come back. In the bottom, trying to get rid of a gel.....have a pink or blue tile next to it when making a word.....it will explode. Good Luck.....