This is part 3 of Earth and Sky. I played the second one only a few weeks ago, but I already forgot an important power of the characters, and it made the first puzzle very hard for me. However, talking to to each other enough gives you all solutions.
You play two characters, one with sky powers (flying, zapping, fogging), and one with earth powers (punching, lifting, jumping). You are trying to rescue your parents.
The game is pretty short, with a linear sequence of puzzles that you have to solve one-by-one. The writing was good, the graphics were fun (mostly "BLAM!"-type comic words). I was disappointed that I had forgotten so much of the plot from the last playthrough.
This game is very good, but not the best. I think that a few of the other games from 2004 IFComp were better, but that the whole set of 3 Earth and Sky games make a very good package, like a Chopped chef that wins because of three solid courses, while the other chefs had one incredible course and a few poor courses.