To rescue all the Pets you’ll need to make a few line blasters, bombs or other special blocks to help you.
The best help comes from vertical line blasts.
First make a large group of blocks (until an arrow appears)
Also, note which way the arrow is facing.
If it is horizontal and you need it to be vertical change the group of blocks slightly (move them on the board or add a new block) The arrow will now switch to vertical.
Each time you change the block group, the arrow will alternate between horizontal and vertical.
Then to get the line blaster in the right place, click the group of blocks in the same column the Pet is.
If you gather enough blocks (9) you can also make bombs, these are great for clearing under the Pets.
Notice there are also some bombs and line blasters on the board already. Make good use of these.
It is especially helpful to match the bomb and blaster at the bottom of the Level to swipe away 3 rows of blocks!