When Steve Stronghold, also known as the almighty Commander, finds out that his son has been assigned to the sidekicks group in Power Placement, he becomes livid and insists that "Boomer is on a power trip." This is one particularly great example of the wordplay and innuendo Sky High packs its runtime with. The term "power play" does literally refer to what Boomer is doing, in taking out his negativity on an innocent kid he has power over. But of course, his desire to engage in that power play has to do with actual superpowers as well. He was not able to use his sonic abilities to become an A-list hero, and so he takes his anger out on kids.
When it comes to more risqué jokes, Sky High mostly refrains. One notable exception comes when Stitches snickers to Royal Pain, "Smooth move on the joystick," and she gets offended. Even this innuendo, though, sounds more goofily high school than actually dirty. It's a slightly adult joke, but it's also just another piece of world-building, reinforcing the fact that this is high school, albeit with superpowers. The awkward transition of adolescence is, well, awkward, and it often entails a lot of really dumb jokes.
