Call of Duty 4: Modern Warfare.
I loved that game on the 360 back in 2007, and I invested several hours in that game's multiplayer.
Last summer, I tried playing it on the PC, and now it felt extremely bland, and nothing special.
"Just for comparison Uncharted 4 was 20x bigger than Splatoon 2. This shows the huge difference between Sony's first-party games and Nintendo's first-party games."