It's high noon.
Debug Menu#
The following code replaces the "説明プレイ(TUTORIAL)" on the main menu with a debug menu:
80094588 7BE8
It's not possible to exit this debug menu, as the player gets stuck on a white screen. Of the functions shown here; only CHR Test and BACK Test work within this debug menu; they are character sprite and background viewers, respectively. A build date and version number are also displayed at the bottom of the screen.
(Source: Original TCRF research)