Set the Saturn's internal clock to a time between 10am and 11am.
Yuna and Manto
At the Match Play screen hold L R.
At the Title screen hold L R A Up/Left.
At the opening screen with two bomberman dancing hold L R and press Up/Left A Up/Left B Up/Right C.
Adjust Time of Day
At the Stage Selection screen hold X Y Z. Then press Up or Down
Full Pause Screen
Pause gameplay and press X Y Z.
View Ending Sequence
At the Opening screen with two bomberman dancing hold L R and press Down Z.
At the Press Start screen press any of the following:
1 L R Up/Left A
2 L R Up/Left B
3 L R Up/Right C
4 L R Up/Left Xv5 L R Up Y
6 L R Down Z