For level 69, you need to make matches of the limegreen shatter block next to a brown stonewall block. It will then appear as a selectable item on the top right of the board. You can drag and drop every broken block from that area onto the game board itself. So you take the broken brown stonewall block and you drag it below the solid wall at the bottom. It will fall, and you will get to 5 quickly.
For level 80, you need to do the same thing and try to connect 1 sun and send it through those gray arrow blocks. If you do that next to the limegreen shatter block, the sun blocks will appear on that selectable top right area again. You can then drag those blocks and alternate sun-moon-sun-moon and so on in one big snake and clear the board on the bottom.