1997 Cyan
Designed by Rand Miller, Robyn Miller, Richard VanderWende
*) stopping the spinning domes -- fair, but hard enough to be annoying

*) Several instances of remote actions, where flipping a switch here has some
   effect at a distant there (out of sight).

*) making the association between each orb and the appropriate animal
   -- Good puzzle, but you have to know all the animal shapes to be able to
   -- recognise them, they can be well hidden as part of the scenery.
*) matching colours to the islands
   -- Good puzzle, big ah ha! factor.
*) figuring out the numbering system

In general, the difficulty is in recognising the clues and making the
associations between them. Actual problem solving with the clues is not that

*) Lots of tedious travel back and forth.