Gen 3 - Contra
One of most memorable games from my childhood.
Gen 4 - Donkey Kong Country 2
Amazing ambient and soundtrack.
Gen 5 - The Legend of Zelda: Ocarina of Time
Great narrative, I don't talk about the history but the way that history is conducted.
Gen 6 - Shenmue
I feel like i'm playing some of these fighting movies from the 80's, and i love it.
Gen 7 - Okami
I love the senses and oriental cultura, it's beautiful, calm and touching, same things that attract me in Zelda and Shenmue games.
Gen 8 - Super Mario 3D World
One of best local multiplayer experience that i've ever had.