Pet Rescue Saga Level 279, written guide and video by the Blogging Witches
Target: Save 5 pets and get at least 52000 points.
TIP: The metal boxes in this level can be destroyed by the springs in the game and rockets you build up (though points and speed) as you play. With the rockets I cleared the columns on the right first, trying to get the columns to slide so that two or three lots of the metal boxes are in one column in the middle of the board.Use the solid wooden blocks in the centre of the game to help move your columns over so that two of them double up and can be removed with the one rocket.This can be done twice during the game. The pets are in every second column in the last row, so it is not until they are visible that you can clear the columns they are in.