Start at level 7:

Press Circle
(2), Triangle
(2), Circle
(2),X
, Triangle
, Circle
, Triangle
(2) at
the title screen with the "Start" and "Option"
selections. A sound will confirm correct code entry.Cho-rensa mode in single player game:

Quickly press Up
(2), Down
(2), Left
,Right
, :Left
, Right
, X
, Circle

at the Konami logo. A sound will confirm correct code entry. Note:
This code also allows katakana and roman character sets to be
used in games in Konjou story mode.Play as Miharu, Yoshio, and Rei (single
player game):

Get "omoide" for all eleven standard characters.
Enable "Skip" mode from the options menu. Select a single
player game. Miharu, Yoshio, and Rei will appear on the character
selection screen.Play as Miharu, Yoshio, and Rei (two player
game):

Hold Left
on controller one and Right

on controller two when selecting the game mode. Hold Up

on controller one and Down
on controller two when selecting
the number of rounds. Miharu, Yoshio, and Rei will appear on the
character selection screen. Easy mode:

Enable the "Cho-rensa mode in single player game"
code. Then, enter: Konamiman
in katakana . A sound will
confirm correct code entry.Expert mode:

Enter tsugi no tama
in hiragana. A sound will
confirm correct code entry. The next piece display feature will
be disabled.Koala shaped pieces:

Enter Shiritsu Kirameki Koukou
in hiragana.
A sound will confirm correct code entry.