Bubble Bobble Junior [Model DMG-LXA]

GAME GENIE:
019?C6D?E6A - Re-enables the debug Stage select and Sound tests screens. During the game, press Select, then Start to enter this mode. A number in the middle of the screen represents the stage index as well as music index. To play music, press A, to start from the selected level press Start. Note, that so-called "Stage select" password for this game known before actually is a regular password with stage number above the valid game limits. Any valid game password threated by the game as a Stage select from 1 to level number encoded in the password itself.