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Puyo15th Excavation.png
Margin time192
Target points420
OffsettingYes, until a star is cleared
All clear bonus None

Excavation (はっくつ, Hakkutsu) is a game mode that appears in Puyo Puyo Box (as Treasure Mode), Puyo Puyo! 15th Anniversary, Puyo Puyo!! 20th Anniversary, and Puyo Puyo Chronicle.


A player has cleared the star.

When the match starts, the game drops a random assortment of Puyos onto your field, along with a star at the bottom of the field surrounded by Hard Puyos. The objective is to clear any Puyos that are in your way and to clear the star before your opponent does. It is still possible to defeat the other player without clearing the star, although it is hard due to the increased target points.

When a player clears their star, the rules change slightly. Offsetting is disabled for the rest of match, and the opponent is sent an endless amount of Garbage Puyos, which simply shows up as 6 Comet Puyos in their nuisance tray.

Excavation is always played with 4 colors, except during matches in the early levels of story mode where 3 colors are used.

In Puyo Puyo!! 20th Anniversary, the mode is mostly the same, the only differences in this version is the addition of an optional quick drop and filling up the 4th column will no longer cause the player to lose. This game also includes a slight variation of this mode called Mini Puyo Excavation, which is played on a 10x18 field.

Difficulty levels

The only major difference between difficulty levels is the number of rows of Puyos you start with on your field.

Very Easy
The player starts out with 4 rows of Puyos.
The player starts out with 5 rows of Puyos.
The player starts out with 6 rows of Puyos.
The player starts out with 7 rows of Puyos.
Very Hard
The player starts out with 8 rows of Puyos. Additionally, the player's Puyos also fall slightly faster.


  • The match with Doppelganger Arle in Puyo Puyo~n plays similarly to this mode, as the main goal is to clear the Hard Puyo out of the way and clear the two 500K Point Puyos at the bottom of the screen. All matches in the Ruins stage also play similarly, though the Point Puyo are nowhere near as strong.