diff --git a/Frameworks/lazyusf2/lazyusf2/rsp_hle/alist.c b/Frameworks/lazyusf2/lazyusf2/rsp_hle/alist.c
index e509b3755..d00078905 100644
--- a/Frameworks/lazyusf2/lazyusf2/rsp_hle/alist.c
+++ b/Frameworks/lazyusf2/lazyusf2/rsp_hle/alist.c
@@ -1031,3 +1031,17 @@ void alist_iirf(
     dram_store_u16(hle, (uint16_t*)&ibuf[(index-1)&3], address+10, 1);
 }
 
+/* Perform a clamped gain, then attenuate it back by an amount */
+void alist_overload(struct hle_t* hle, uint16_t dmem, int16_t count, int16_t gain, int16_t attenuation)
+{
+    int16_t accu;
+    int16_t * sample = (int16_t*)(hle->alist_buffer + dmem);
+
+    while (count != 0)
+    {
+        accu = clamp_s16(*sample * gain);
+        *sample = (accu * attenuation) >> 16;
+        sample++;
+        count --;
+    }
+}
diff --git a/Frameworks/lazyusf2/lazyusf2/rsp_hle/alist.h b/Frameworks/lazyusf2/lazyusf2/rsp_hle/alist.h
index 2c2d40cfe..32579eb60 100644
--- a/Frameworks/lazyusf2/lazyusf2/rsp_hle/alist.h
+++ b/Frameworks/lazyusf2/lazyusf2/rsp_hle/alist.h
@@ -154,6 +154,13 @@ void alist_iirf(
         int16_t* table,
         uint32_t address);
 
+void alist_overload(
+        struct hle_t* hle,
+        uint16_t dmem,
+        int16_t count,
+        int16_t gain,
+        int16_t attenuation);
+
 /*
  * Audio flags
  */
diff --git a/Frameworks/lazyusf2/lazyusf2/rsp_hle/alist_naudio.c b/Frameworks/lazyusf2/lazyusf2/rsp_hle/alist_naudio.c
index 30891d23d..1c66eabec 100644
--- a/Frameworks/lazyusf2/lazyusf2/rsp_hle/alist_naudio.c
+++ b/Frameworks/lazyusf2/lazyusf2/rsp_hle/alist_naudio.c
@@ -263,6 +263,17 @@ static void MP3(struct hle_t* hle, uint32_t w1, uint32_t w2)
     mp3_task(hle, index, address);
 }
 
+static void OVERLOAD(struct hle_t* hle, uint32_t w1, uint32_t w2)
+{
+    /* Overload distortion effect for Conker's Bad Fur Day */
+    /* Also included in Jet Force Gemini microcode */
+    uint16_t dmem = (w1 & 0xfff) + NAUDIO_MAIN;
+    int16_t gain = w2 & 0x7fff;
+    int16_t attenuation = w2 >> 16;
+
+    alist_overload(hle, dmem, NAUDIO_COUNT, gain, attenuation);
+}
+
 /* global functions */
 void alist_process_naudio(struct hle_t* hle)
 {
@@ -341,7 +352,7 @@ void alist_process_naudio_dk(struct hle_t* hle)
 void alist_process_naudio_mp3(struct hle_t* hle)
 {
     static const acmd_callback_t ABI[0x10] = {
-        UNKNOWN,        ADPCM,          CLEARBUFF,      ENVMIXER,
+        OVERLOAD,       ADPCM,          CLEARBUFF,      ENVMIXER,
         LOADBUFF,       RESAMPLE,       SAVEBUFF,       MP3,
         MP3ADDY,        SETVOL,         DMEMMOVE,       LOADADPCM,
         MIXER,          INTERLEAVE,     NAUDIO_14,      SETLOOP
@@ -349,7 +360,7 @@ void alist_process_naudio_mp3(struct hle_t* hle)
 
     #ifdef DEBUG_INFO
     static const char * ABI_names[0x10] = {
-       "UNKNOWN",      "ADPCM",        "CLEARBUFF",    "ENVMIXER",
+       "OVERLOAD",     "ADPCM",        "CLEARBUFF",    "ENVMIXER",
        "LOADBUFF",     "RESAMPLE",     "SAVEBUFF",     "MP3",
        "MP3ADDY",      "SETVOL",       "DMEMMOVE",     "LOADADPCM",
        "MIXER",        "INTERLEAVE",   "NAUDIO_14",    "SETLOOP"
@@ -366,7 +377,7 @@ void alist_process_naudio_cbfd(struct hle_t* hle)
 {
     /* TODO: see what differs from alist_process_naudio_mp3 */
     static const acmd_callback_t ABI[0x10] = {
-        UNKNOWN,        ADPCM,          CLEARBUFF,      ENVMIXER,
+        OVERLOAD,       ADPCM,          CLEARBUFF,      ENVMIXER,
         LOADBUFF,       RESAMPLE,       SAVEBUFF,       MP3,
         MP3ADDY,        SETVOL,         DMEMMOVE,       LOADADPCM,
         MIXER,          INTERLEAVE,     NAUDIO_14,      SETLOOP
@@ -374,7 +385,7 @@ void alist_process_naudio_cbfd(struct hle_t* hle)
 
     #ifdef DEBUG_INFO
     static const char * ABI_names[0x10] = {
-       "UNKNOWN",      "ADPCM",        "CLEARBUFF",    "ENVMIXER",
+       "OVERLOAD",     "ADPCM",        "CLEARBUFF",    "ENVMIXER",
        "LOADBUFF",     "RESAMPLE",     "SAVEBUFF",     "MP3",
        "MP3ADDY",      "SETVOL",       "DMEMMOVE",     "LOADADPCM",
        "MIXER",        "INTERLEAVE",   "NAUDIO_14",    "SETLOOP"