Expert Floor 23 is a snake like level. The blocks have a serpentine appearance and move back and forth.
There is only one goal in this stage.
To get to the blue goal, you just need to move along the sliding blocks as they form a straight line. Although they do move back and forth, they do so in a pattern, meaning there is always a relatively straight line of blocks to go on. You will have to change directions several times, so control your speed.