I believe The Beatles: Rock Band came the closest to being perfect. Eveything about that game was just beautifully done and the only things missing was Pro Drums, an option for Keys, and a few more Beatle songs (Hey Jude, Strawberry Fields Forever, Yesterday etc. etc.)
Tetris is an interesting one because you’ve got 3+ decades of variations on the original, but the original is still the best. I’d argue it’s a perfect game.
The original Tetris tournament is still ongoing. It’s there a worldwide tournament for an older video game?
I personally disagree that the original is best. It’s high up there, but I think some of the later titles have improvements that eek out the #1 spot.
I’m a fan of the “piece swap” feature, and later games have polished the piece lock over the original. Tetris 99 was the sweet spot for games that I’ve played.