Trang chủ/JLPT null/Từ vựng/ＢＧＭＢＧＭ🔊☆ Lưu vào danh sáchビー・ジー・エムNghĩa—Câu ví dụ十字キーを上へ！するとＢＧＭが変わり、背景は魔王の居城へ・・・。Hit up on the D-pad, and the background music will change as the background itself becomes the Demon King's castle....