ref: ce4c2d3d1247b7d90c7cf6d5b64ef486a88b70c7 dir: /audio/sfx/battle_21.asm/
SFX_Battle_21_Ch8: noise_note 2, 15, 1, 51 noise_note 2, 12, 1, 50 noise_note 2, 10, 1, 49 noise_note 15, 8, 2, 50 noise_note 8, 15, 1, 52 sound_ret