For me it was Okami. I remember you do a ton of shit to get to a certain boss which I thought it was the end, only for it to reveal that there was a loooong path ahead.
Other than that, maybe cyberpunk? I was surprised after all that stuff you do in the beginning just to see the titles pop up
Donkey Kong Tropical Freeze You hear the music for the first boss after getting there and you just yell, “This is only the first boss!?”