I liked the presentation, the naming, the style of the graphic assets and that it was a double inversion. Not only that you are the pipes, but that you have to stop the fly from escaping. And that this all was anchored in the world building.
It took me a few retries to get going and I at least got to about 20-ish flies where there speed is increased. However the game lied and said I got 0 score.
It might have been nice to have to swatters (and possibly the game) in a paused state or at least not starting to fall immediately when the level starts. Since the player doesn’t exactly know what to do and might want a second to take in the scene.
Also it feel like the swatters should have a bit of invulnerability or some reset after a life is lost. If you let go of space it feel like you insta-loose all 3 lives.