The trick here is to use the mystery eggs and see what you get. Mix the jelly and the eggs and see if you can break through to the other side. You are going to need to at least be able to open the blocks up top so some pieces fall down and you can create some matches. Once the other side is open, try to save the jellyfish at the bottom until you need them, but make most of your matches on the left hand side until you run out, then try for a striped candy or have one handy before you run out of matches on the left. You will get spinners and bombs from the left hand dispensers, so keep an eye on the bomb counts so you don’t lose out. Once you get through all the double jelly you are all clear. If you still have jellyfish left and have some tough pieces, this is the best way to pass the level with no hard work.
Patricia Frederick’s Tips for Candy Crush Level 262
The bomb dispensers on the left do not release a stream of bombs, so match the mystery candies, and release the jellyfish. If possible match the jellyfish with special candies to enhance their effect.