In Earth and Sky, you play as a woman who discovers superpowers, together with her brother.
There are two times where you use your powers: a training session, and a battle. Before each of these events is a short exposition/exploration segment.
The exposition sections use a menu conversation system with the chance to be normal or to use crazy B-movie dialog.
The plot is silly, but the writing is vivid and you can really imagine what is going on. I think the author was very successful here.
I recommend this game, especially because it is so short that you have nothing to lose by playing it.