The most "detailed" description I could find was this:
The object of this is to get all the crystal balls on both sides to cross the board. Walk around the outside starting from the right and work your way to the first crystal.
Do the same, finding the pattern for each path, which is not difficult to do. Just try to keep walking even when there is no path, yet do not step on the black ooze stuff if it’s there.
This part is very easy and I will not explain exactly how it is done as it would be very difficult to put into words. Once you have broken all three crystals you are finished...
The other walkthroughs I looked at give little or no description at all.