Dictionary / Vocabulary / 十字キー
じゅうじキー
D-pad (directional keypad on a video game controller, remote control, etc.)
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....