In this game, you play the second half of the first Savage Island. The first Savage Island was really hard, but this one is much harder.
It's hard to survive past the first two moves, as you must discover how to survive a vacuum. Beyond that, it just keeps getting harder, as you experience things that have to be searched on several levels, unusual verbs and unusual ways to use objects, and more vacuum-based time limits.
Overall, though, it has a much more coherent story than some other Scott Adams games.