Shadow of the colussus
God this game looked gorgeous, this game reminds you that most Ps2 games never used the full graphical potential of the Ps2.
It may also remind you of Nes games in the sense that your adventure has a very simple objective, save your sleeping GF.
That's basically the plot of Zelda 2 for the Nes all SOTC did was basically add visually stunning colussus, The best horse in videogame history, Agro, and an interesting grappling puzzle dynamic to take each down each colussus.
This is basically "Climb a giant" the game a concept that if you think about its pretty cool from the beginning all you gotta do is execute it properly and you got yourself a game masterpiece.
Like Ico, this is also a very solitary game, you'll explore a visually beautiful world but it's empy as hell and actually a bit confusing to navigate in some parts.