diff --git a/src/engine/instrument.cpp b/src/engine/instrument.cpp
index 76168173f..384e0b780 100644
--- a/src/engine/instrument.cpp
+++ b/src/engine/instrument.cpp
@@ -915,7 +915,13 @@ void DivInstrument::putInsData2(SafeWriter* w, bool fui, const DivSong* song) {
         featureSM=true;
         featureSL=true;
         break;
-
+      case DIV_INS_GA20:
+        featureSM=true;
+        featureSL=true;
+        break;
+      case DIV_INS_POKEMINI:
+        break;
+      
       case DIV_INS_MAX:
         break;
       case DIV_INS_NULL:
diff --git a/src/engine/instrument.h b/src/engine/instrument.h
index a4c1effc8..65a81f8b6 100644
--- a/src/engine/instrument.h
+++ b/src/engine/instrument.h
@@ -76,6 +76,8 @@ enum DivInstrumentType: unsigned short {
   DIV_INS_MSM5232=43,
   DIV_INS_T6W28=44,
   DIV_INS_K007232=45,
+  DIV_INS_GA20=46,
+  DIV_INS_POKEMINI=47,
   DIV_INS_MAX,
   DIV_INS_NULL
 };
diff --git a/src/engine/song.h b/src/engine/song.h
index 44cdd9790..e1a1607db 100644
--- a/src/engine/song.h
+++ b/src/engine/song.h
@@ -116,6 +116,7 @@ enum DivSystem {
   DIV_SYSTEM_MSM5232,
   DIV_SYSTEM_T6W28,
   DIV_SYSTEM_K007232,
+  DIV_SYSTEM_GA20,
   DIV_SYSTEM_PCM_DAC,
   DIV_SYSTEM_PONG,
   DIV_SYSTEM_DUMMY
diff --git a/src/engine/sysDef.cpp b/src/engine/sysDef.cpp
index d713a65b4..0b30b7eb7 100644
--- a/src/engine/sysDef.cpp
+++ b/src/engine/sysDef.cpp
@@ -1174,7 +1174,7 @@ void DivEngine::registerSystems() {
     {"Square"},
     {"SQ"},
     {DIV_CH_PULSE},
-    {DIV_INS_BEEPER}
+    {DIV_INS_POKEMINI}
   );
 
   sysDefs[DIV_SYSTEM_SEGAPCM]=new DivSysDef(
@@ -1703,6 +1703,16 @@ void DivEngine::registerSystems() {
     {DIV_INS_AMIGA, DIV_INS_AMIGA}
   );
 
+  sysDefs[DIV_SYSTEM_GA20]=new DivSysDef(
+    "Irem GA20", NULL, 0xc7, 0, 4, false, true, 0x171, false, 1U<<DIV_SAMPLE_DEPTH_8BIT,
+    "yet another PCM chip from Irem.",
+    {"Channel 1", "Channel 2", "Channel 3", "Channel 4"},
+    {"CH1", "CH2", "CH3", "CH4"},
+    {DIV_CH_PCM, DIV_CH_PCM, DIV_CH_PCM, DIV_CH_PCM},
+    {DIV_INS_GA20, DIV_INS_GA20, DIV_INS_GA20, DIV_INS_GA20},
+    {DIV_INS_AMIGA, DIV_INS_AMIGA}
+  );
+
   sysDefs[DIV_SYSTEM_DUMMY]=new DivSysDef(
     "Dummy System", NULL, 0xfd, 0, 8, false, true, 0, false, 0,
     "this is a system designed for testing purposes.",
diff --git a/src/gui/dataList.cpp b/src/gui/dataList.cpp
index 144ef697e..46b10800d 100644
--- a/src/gui/dataList.cpp
+++ b/src/gui/dataList.cpp
@@ -422,6 +422,14 @@ void FurnaceGUI::drawInsList(bool asChild) {
               ImGui::PushStyleColor(ImGuiCol_Text,uiColors[GUI_COLOR_INSTR_K007232]);
               name=fmt::sprintf(ICON_FA_BAR_CHART "##_INS%d",i);
               break;
+            case DIV_INS_GA20:
+              ImGui::PushStyleColor(ImGuiCol_Text,uiColors[GUI_COLOR_INSTR_GA20]);
+              name=fmt::sprintf(ICON_FA_BAR_CHART "##_INS%d",i);
+              break;
+            case DIV_INS_POKEMINI:
+              ImGui::PushStyleColor(ImGuiCol_Text,uiColors[GUI_COLOR_INSTR_POKEMINI]);
+              name=fmt::sprintf(ICON_FA_BAR_CHART "##_INS%d",i);
+              break;
             default:
               ImGui::PushStyleColor(ImGuiCol_Text,uiColors[GUI_COLOR_INSTR_UNKNOWN]);
               name=fmt::sprintf(ICON_FA_QUESTION "##_INS%d",i);
diff --git a/src/gui/gui.h b/src/gui/gui.h
index b2fe7f3e1..aa0ff29a9 100644
--- a/src/gui/gui.h
+++ b/src/gui/gui.h
@@ -186,6 +186,8 @@ enum FurnaceGUIColors {
   GUI_COLOR_INSTR_MSM5232,
   GUI_COLOR_INSTR_T6W28,
   GUI_COLOR_INSTR_K007232,
+  GUI_COLOR_INSTR_GA20,
+  GUI_COLOR_INSTR_POKEMINI,
   GUI_COLOR_INSTR_UNKNOWN,
 
   GUI_COLOR_CHANNEL_BG,
diff --git a/src/gui/guiConst.cpp b/src/gui/guiConst.cpp
index ac68cb187..9f0ad23be 100644
--- a/src/gui/guiConst.cpp
+++ b/src/gui/guiConst.cpp
@@ -126,6 +126,8 @@ const char* insTypes[DIV_INS_MAX+1]={
   "MSM5232",
   "T6W28",
   "K007232",
+  "GA20",
+  "Pokémon Mini",
   NULL
 };
 
@@ -810,6 +812,8 @@ const FurnaceGUIColorDef guiColors[GUI_COLOR_MAX]={
   D(GUI_COLOR_INSTR_MSM5232,"",ImVec4(0.5f,0.9f,1.0f,1.0f)),
   D(GUI_COLOR_INSTR_T6W28,"",ImVec4(1.0f,0.8f,0.1f,1.0f)),
   D(GUI_COLOR_INSTR_K007232,"",ImVec4(1.0f,0.8f,0.1f,1.0f)),
+  D(GUI_COLOR_INSTR_GA20,"",ImVec4(0.1f,1.0f,0.4f,1.0f)),
+  D(GUI_COLOR_INSTR_POKEMINI,"",ImVec4(1.0f,1.0f,0.3f,1.0f)),
   D(GUI_COLOR_INSTR_UNKNOWN,"",ImVec4(0.3f,0.3f,0.3f,1.0f)),
 
   D(GUI_COLOR_CHANNEL_BG,"",ImVec4(0.4f,0.6f,0.8f,1.0f)),
diff --git a/src/gui/insEdit.cpp b/src/gui/insEdit.cpp
index c5b630a29..97f3a80d4 100644
--- a/src/gui/insEdit.cpp
+++ b/src/gui/insEdit.cpp
@@ -4949,6 +4949,9 @@ void FurnaceGUI::drawInsEdit() {
           if (ins->type==DIV_INS_QSOUND) {
             volMax=16383;
           }
+          if (ins->type==DIV_INS_POKEMINI) {
+            volMax=2;
+          }
 
           const char* dutyLabel="Duty/Noise";
           int dutyMin=0;
@@ -4982,7 +4985,7 @@ void FurnaceGUI::drawInsEdit() {
             dutyLabel="Group Ctrl";
             dutyMax=5;
           }
-          if (ins->type==DIV_INS_BEEPER) {
+          if (ins->type==DIV_INS_BEEPER || ins->type==DIV_INS_POKEMINI) {
             dutyLabel="Pulse Width";
             dutyMax=255;
           }
@@ -5079,6 +5082,7 @@ void FurnaceGUI::drawInsEdit() {
           if (ins->type==DIV_INS_MSM6295) waveMax=0;
           if (ins->type==DIV_INS_SEGAPCM) waveMax=0;
           if (ins->type==DIV_INS_K007232) waveMax=0;
+          if (ins->type==DIV_INS_POKEMINI) waveMax=0;
           if (ins->type==DIV_INS_SU) waveMax=7;
           if (ins->type==DIV_INS_PET) {
             waveMax=8;
diff --git a/src/gui/settings.cpp b/src/gui/settings.cpp
index db8906209..d40e4dac7 100644
--- a/src/gui/settings.cpp
+++ b/src/gui/settings.cpp
@@ -1787,7 +1787,10 @@ void FurnaceGUI::drawSettings() {
               UI_COLOR_CONFIG(GUI_COLOR_INSTR_QSOUND,"QSound");
               UI_COLOR_CONFIG(GUI_COLOR_INSTR_YMZ280B,"YMZ280B");
               UI_COLOR_CONFIG(GUI_COLOR_INSTR_RF5C68,"RF5C68");
+              UI_COLOR_CONFIG(GUI_COLOR_INSTR_MSM5232,"MSM5232");
               UI_COLOR_CONFIG(GUI_COLOR_INSTR_K007232,"K007232");
+              UI_COLOR_CONFIG(GUI_COLOR_INSTR_GA20,"GA20");
+              UI_COLOR_CONFIG(GUI_COLOR_INSTR_POKEMINI,"Pokémon Mini");
               UI_COLOR_CONFIG(GUI_COLOR_INSTR_UNKNOWN,"Other/Unknown");
               ImGui::TreePop();
             }