Who's That Flying?! is an action game from Mediatonic. The player assumes the role of the "Guardian of Earth," a superhero tasked with defending cities from an invasion of "Doom Beasts" while simultaneously facing judgment from the Galactic Council of Justice. The game's narrative centers on uncovering the perpetrators behind the alien attacks.The core gameplay loop unfolds across a story mode with 15 levels spanning 5 distinct stages, pitting the player against 11 enemy types and culminating in 5 boss battles. Additional modes include 4 Infinite Mode stages and 24 Challenge Mode stages. Unlocking bonus content reveals 14 magazine articles, 12 awards, and 6 courtroom cutscenes that expand the game's lore. The title supports Steam Achievements, global leaderboards, Steam Cloud, and controllers.