There are only 4 colors on this level, so making bigger better matches is easier. You have to grab the +5 bonuses to keep the time healthy, but it won’t go past 30 seconds, so don’t waste the. Make some headway into the sides to give you more room to work with as you slowly work into the locked pieces. Keep an eye on the clock and if you can break through the locked pieces and make it to the bottom, you should score enough points to pass this level. Note that if you have the Charm of Frozen Time here, you will probably get a ridiculously large score and once all the blocks are all gone, it will be hard to end the level as many of the powerup pieces shoot through and keep extending the clock. With the charm, 2 million points isn’t hard.
Patricia Frederick’s Tips for Candy Crush Level 252
Start matching and work down. There’s no need to unlock a large portion of the locked row. Try to focus on one side to grab as many +5’s as you can.