Donkey Kong County Returns. Played it back when I was younger and it didn’t click with me. The platforming was too challenging and honestly I think I got too swept up in the hype around the game at the time.
Coming back to it later, I really appreciate it now. The music, animations and platforming is all sublime. It’s sequel, Tropical Freeze is my favorite 2d platfomer hands down. It’s an absolute joy to play
Interesting how there’s so many answers here, but no mention of the one I came here for (and I thought would be most popular) : ricing.
I got into Linux when I saw screenshots of all the cool desktops people made with KDE, XFCE, and tiling window managers. Even Gnome looked sleek and minimal. After a while I got bored of ricing but I stayed for the ease of use as a developer