One Videogame From Childhood That You Will Get Tired Of?

I'll start for me definitely The King of Fighters 2002 from NeoGeo although I mostly played on pc via emulator. So many characters to choose from with so many combos its a never ending game for me plus the nostalgia. I remember, the first time I saw my uncle play it, on his old squared monitor man those were the days :) I am curious to know what games you played during your childhood that you find so nostalgic and wouldn't mind playing it today?

Edit: So many great replies, guys! I'm overwhelmed you all have excellent taste. Let's keep the nostalgia train rolling :D