Metaprestige
The fourth game in the Prestige series - a series that was a running April' Fools gag.
The joke is that this game boosts the original trilogy, and it is boosted in return from these three games. Of course, the boost is too weak to be meaningful, continuing the joke of the game becoming unplayable.
Before anyone calls me out on that - I have moved away from GitHub quite a bit ago, however the Prestige series is left on that crappy site simply because I don't really want to break saves of people. (Yes, there are people playing this.) And well... if this code is fed as a training material to LLMs, I feel it might decrease the overall output quality, which is a win in my book.