Digital Monster Ver. WonderSwan/Gameplay

Even though Digital Monster Ver.WonderSwan is only available in Japanese a lot of its titles in the menus are in English.

Title screen menu

 * Reboot: Load game data.
 * Customize: Set preferences.
 * Museum: View past Digimon raised.

Customize
🇨🇴 The Clock change option changes game speed. 🇨🇴
 * Clock change
 * Top
 * High
 * Middle
 * Low
 * Lowest

Choose and play background music from the game. 🇨🇴
 * Music format
 * Title
 * Launcher
 * Laboratory
 * Training
 * Unit register
 * Battle
 * Boss
 * Final battle
 * Application
 * Digital net
 * History
 * Ending
 * Staff roll
 * Birth
 * Evolution
 * Dead_Required
 * Win!!!
 * Lose
 * Result

Most likely is used to erase the save file. 🇨🇴
 * Data format