For me it was RESIDENT EVIL: Code Veronica.
My dad bought a Dreamcast in early 2001. I was 7 years old and long story short, he also bought Code Veronica and Maken X which both were the fuel of my nightmares back then. My English proficiency was barely enough to understand the menus and such, but I couldn’t follow the story. I could never get past the first cabin and all I remembered were the burning, pale zombies, twitching on the ground.
Years later in my teens, I bought it when it was released for PS3 and I couldn’t get past the first half hour of gameplay due to extreme boredom. I thought it took itself too seriously and was super mediocre.
Now, at almost 30, I downloaded it for my iPad and I’m having a blast. It’s not serious or boring AT ALL… all the contrary; it’s the goofiest, corniest RE game I’ve ever played and that’s saying a lot considering "Master of Unlocking”, “Jill Sandwich” and “boulder punching Chris” are a thing. Granted, it has a ton of annoying backtracking, but once you get to the dialogue bits, the cringyness makes all the backtracking worth it.
Spencer went out to say that they lost the most important generation to lose (XBOX One gen, not the current one. Corrected thanks to @Boldizzle ), and that they were going back to the drawing board to turn things around. They just hiked up the prices of Game Pass and the XBOX Series X. They also basically confirmed that there won’t be any mid-gen “pro” model and that they expect the next gen to come in 2028. And now their plan to buy the industry is also failing.
So what’s next? I doubt they have a queue of heavy hitting first party exclusives in the oven to maintain them until 2028. I’m almost certain that they expected to buy themselves some time by acquiring studios and turning their IPs into system-seller XBOX exclusives.