Namco Anthology Volume 1

Original Mode in Babel
At the Title screen, press Up, Up, Up, Down, Down, Down, Down, Down, Right, Right, Left.
Control Conquerors' Faces in Conqueror's Continent
At the Conqueror Selection screen, hold Select and press Up, Down, Left, Right several times.
Sound Test in Conqueror's Continent
At the Title screen in original mode, hold Circle and press Up, Down, Left, Right several times.
View Ending Sequence in Conqueror's Continent
At the Title screen in original mode, hold Start and press Up, Down, Left, Right several times.
Alternate Dashboard Color in Star Luster
While the Title for the original Star Luster is flashing, press Select, X, Circle, Right, Left, Up, Select, X, Down, Right.
Sound Test in Wrestleball
In the original Wrestleball, select WB League and Karate Team. Then, enter KWGEN as a password. Now press Left or Right to select a song and X to play.
View All Windows Visuals in Wrestleball
In the original Wrestleball, select WB League and Wrestle Team. Then enter NMURA as a password.
Screen Saver in Wrestleball
In the original wrestleball, select WB League and Namco Team. Then, enter SAITA as a password.
Bonus Teams in Wrestleball
In the original Wrestleball, select any mode. Then at the Team Selection screen, hold X until the four bonus teams appear.
Bonus Points in Wrestleball
In the original Wrestleball, select WB League and any standard team. Then, enter MWAKI as a password.