In 35 moves, make all the ghosts disappear (starting with 8). Even though this is a huge grid, most of it is covered in Iron and Golden Blockers. At the very beginning, swipe the gift bags with each other, and if you are not happy with the result use the Time Twister booster and try another variation. The most usual strategy when dealing with ghosts is to separate them and clear out specific parts of the grid. In this level, this can be accomplished easier as the ghosts are all separated by obstacles. You can clear out specific parts and deal with the single ghosts in there quickly and efficiently. The more obstacles are smashed, the more gifts for a match will arrive.
Don’t forget that boosters can destroy ghosts as well without spending a turn.