That thing where there is a secret part of the US government that identifies and tracks aliens is a real thing and I used to work for it. One interesting case was the case of Santer-Bub who was an extra-dimensional organism who landed on Earth in 1961 and embodied itself in a common centipede, and it’s m.o. was to inspire a creator of wooden puzzles to create puzzles and put them in diners. They were called “Genius Testers” and involved pegs jumping and if you had only one peg left in the center hole you were a “genius” and they would give you another game from behind the counter, and if you solved that game another game, and then another game and at that point your brain chemistry and the software of your cognition would have been altered and you’d be basically an alien in thrall to Santer-Bub. So we tracked him down and drug him out of his underground lair — btw he was not a giant centipede he was a regular centipede. And we didn’t kill him — at the moment we were going to put him in the chamber his wife came and rescued him! So there’s that which is an interesting story about those time. We didn’t play the game either because you know aliens.
So Santer-Bub was the centipede version of “The Last Starfighter” (https://www.imdb.com/title/tt0087597/). Works for me.
A little off-topic, but John Carpenter’s “Starman” has always been my favorite alien movie even though it had no centipedes.