What is the best game ever made?
Puyo Puyo 20th Anniversary.
Puyo Puyo Tsu is the greatest competitive puzzle game ever made. Deceptively simple rules lead to an absurdly high skill ceiling. I have a lot of love for the versus puzzle genre as a whole, but what elevates Tsu as the king is the heavy emphasis on paying attention to your opponent and adapting. A lot of other puzzle games kinda just let you do your own thing without worrying too much about what your opponent is up to, just play to out-DPS, but that doesn't fly here. You have to defend and play real footsies in a way that feels surprisingly analogous to fighting games.
20th then went on to take that base and add a ton of goodies to make it the best package deal. 20 variant game modes, 24 character stories, a comprehensive set of tutorials, a devilish set of chain challenges, and a final challenge where you play against max level CPU while it's allowed to cheat.
It's a tragedy this game was never released in the west, and I have a very long rant on Youtube about Sega has criminally neglected the series with the half-assed slop they put out now because they know that crossovers will sell better than the main series ever will.