Worst and Best gaming experiences.

Best
Beating Yoshis Island DS as a kid, it was my first true video game that I owned and I was so happy. The experience gave me a new lifelong love of Nintendo and Yoshi.
Beating Kirby Superstar and Ultra was a similar experience for me since I bought both versions after playing Ultra as a Blockbuster game. Though as a kid I thought the ending meant it was all Kirbys dream, though Marx was so cool as a boss I didnt care.
Super Mario 64 DS, I was obsessed with it since I never played a 3D platformer before. I played it over and over trying to get more stars and finding faster ways to beat the levels.
Playing through Smash Brawl's single player mode. I loved it even though I had no idea who half the characters were and ended up making up headcanons for each one based on the story lol. Some I remember include Pikmin being crayons, Lucas and Claus being brothers in an apocalypse where children were turned into robots, and Pit being Mario's guardian angel.
Beating Paper Mario 64, soo underrated.

Worst
Yoshis NEW Island was sooo disappointing. I was really hopeful for it but got disappointed.
I also remember feeling meh about Paper Mario sticker star, I don't think I got further than the wood world with the giant wiggler.
Pokemon Shield might be the laziest made game I've ever played. Everything from the story to the pokemon themselves felt half baked.
I was really disappointed by Kirby and the Forgotten Land, idk why but something about the gameplay just didn't gel with me like past games did. I almost forgot to list it, it was that forgettable to me.