This game was released only in Japan. It is the fourth game in the Puyo Puyo series and the last set during the Madou-era in the main series.
Continuing the trend of naming the games after puns, the name comes from a pun on "yon", the Japanese word for the number 4, but this time this is the only reference to the pun.

The gameplay in is similar to that of Puyo Puyo 2, but adds super attacks. Clearing chains now builds up a "charge meter" which allows players to use them. The only other addition was a new game mode which could be played with a number of different field sizes, smaller or bigger than the standard 6x12, however, it removes several game modes that were present in Puyo Puyo Sun, i.e. the tournament, task and chain training modes. The art is also vastly different to the previous game in the series and, of course, the Fever series; this style was only otherwise used for Minna de Puyo Puyo.