diff --git a/gamedata/sounds/bgm/gameover.ogg b/gamedata/sounds/bgm/gameover.ogg
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diff --git a/gamedata/sounds/bgm/ingame.ogg b/gamedata/sounds/bgm/ingame.ogg
index 7809da8..09a1071 100644
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diff --git a/gamedata/sounds/bgm/menu.ogg b/gamedata/sounds/bgm/menu.ogg
index e4b2168..5f0ea85 100644
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