diff --git a/src/SB/Core/x/xutil.h b/src/SB/Core/x/xutil.h
index 7f61cce7d..2b6311124 100644
--- a/src/SB/Core/x/xutil.h
+++ b/src/SB/Core/x/xutil.h
@@ -11,4 +11,7 @@ U32 xUtil_crc_update(U32 crc_accum, char* data, S32 datasize);
 S32 xUtil_yesno(F32 wt_yes);
 void xUtil_wtadjust(F32* wts, S32 cnt, F32 arbref);
 
+template <typename T>
+T* xUtil_select(T** arg0, S32 arg1, const F32* arg3);
+
 #endif
diff --git a/src/SB/Game/zNPCSpawner.cpp b/src/SB/Game/zNPCSpawner.cpp
index d818be777..b8c54502a 100644
--- a/src/SB/Game/zNPCSpawner.cpp
+++ b/src/SB/Game/zNPCSpawner.cpp
@@ -177,3 +177,95 @@ U8 zMovePoint::IsOn()
 {
     return this->on;
 }
+
+st_XORDEREDARRAY* zNPCSpawner::FillPending()
+{
+    ClearPending();
+    ReFillPending();
+    return &this->actvlist;
+}
+
+st_XORDEREDARRAY* zNPCSpawner::ReFillPending()
+{
+    s32 var_r28;
+    zNPCCommon* temp_r29;
+    zNPCSpawner* var_r30;
+
+    var_r28 = 0;
+    var_r30 = this;
+    do
+    {
+        temp_r29 = var_r30->npc_owner;
+        if (((zNPCCommon*)var_r30->npc_owner != NULL) && ((s32)temp_r29->flg_vuln == 1))
+        {
+            XOrdAppend(&this->pendlist, (void*)temp_r29);
+            temp_r29->flg_vuln = 2;
+        }
+        var_r28 += 1;
+        var_r30 += 0xC;
+    } while (var_r28 < 0x10);
+    return &this->actvlist;
+}
+
+// void zNPCSpawner::ClearActive()
+// {
+//     s32 var_r6;
+//     s32 var_r7;
+//     void *temp_r5;
+
+//     var_r7 = 0;
+//     var_r6 = 0;
+// loop_4:
+//     if (var_r7 < (s32) this->cnt_cleanup) {
+//         temp_r5 = *(this->pendlist->list + var_r6);
+//         if (temp_r5 != NULL) {
+//             (u32) temp_r5[1] = 1;
+//         }
+//         var_r6 += 4;
+//         var_r7 += 1;
+//         goto loop_4;
+//     }
+//     XOrdReset__FP16st_XORDEREDARRAY(&this->unk1B0);
+// }
+
+SMNPCStatus* zNPCSpawner::NextPendingNPC(S32 arg0)
+{
+    S32 temp_r4;
+    const F32* temp_ptr = NULL;
+
+    temp_r4 = this->pendlist.cnt;
+    if (temp_r4 < 1)
+    {
+        return NULL;
+    }
+    return xUtil_select<SMNPCStatus>((SMNPCStatus**)this->pendlist.list, temp_r4, temp_ptr);
+}
+
+/* zNPCSpawner::StatForNPC (zNPCCommon *) */
+SMNPCStatus* zNPCSpawner::StatForNPC(zNPCCommon* npc)
+{
+    s32 var_ctr;
+    SMNPCStatus* var_r6;
+    zNPCCommon* temp_r0;
+    zNPCCommon* temp_r0_2;
+    zNPCCommon* temp_r0_3;
+    zNPCCommon* temp_r0_4;
+    zNPCCommon* temp_r0_5;
+    zNPCCommon* temp_r0_6;
+    zNPCCommon* temp_r0_7;
+    zNPCCommon* temp_r0_8;
+
+    var_r6 = NULL;
+    var_ctr = 2;
+
+    for (var_ctr = 0; var_ctr < 16; var_ctr++)
+    {
+        temp_r0 = this->npcpool[var_ctr].npc;
+        if ((temp_r0 != NULL) && (temp_r0 == npc))
+        {
+            var_r6 = &this->npcpool[var_ctr];
+        }
+    }
+
+    return var_r6;
+}
diff --git a/src/SB/Game/zNPCSpawner.h b/src/SB/Game/zNPCSpawner.h
index 231131d8c..615fa42fa 100644
--- a/src/SB/Game/zNPCSpawner.h
+++ b/src/SB/Game/zNPCSpawner.h
@@ -5,20 +5,9 @@
 
 #include "xRMemData.h"
 #include "xordarray.h"
+#include "xutil.h"
 
-enum en_SM_NOTICES
-{
-    SM_NOTE_NPCDIED,
-    SM_NOTE_NPCSTANDBY,
-    SM_NOTE_NPCALIVE,
-    SM_NOTE_DUPPAUSE,
-    SM_NOTE_DUPRESUME,
-    SM_NOTE_DUPSETDELAY,
-    SM_NOTE_DUPDEAD,
-    SM_NOTE_KILLKIDS,
-    SM_NOTE_NOMORE,
-    SM_NOTE_FORCE = 0x7fffffff
-};
+#include "zNPCTypeCommon.h"
 
 enum en_SM_WAVE_MODE
 {
@@ -50,8 +39,6 @@ enum en_SM_NPC_STATUS
     SM_NPC_FORCE = 0x7fffffff
 };
 
-struct zNPCCommon;
-
 struct SMDepot
 {
     st_XORDEREDARRAY spawners;
@@ -84,7 +71,7 @@ struct zNPCSpawner : RyzMemData
     SMSPStatus sppool[16];
     SMNPCStatus npcpool[16];
     st_XORDEREDARRAY pendlist;
-    st_XORDEREDARRAY actvlist;
+    st_XORDEREDARRAY actvlist; //0x1A4
     S32 cnt_cleanup;
 
     void Subscribe(zNPCCommon* owner);
@@ -103,6 +90,9 @@ struct zNPCSpawner : RyzMemData
     // NextPendingNPC.
     void ClearActive();
     void ClearPending();
+    SMNPCStatus* NextPendingNPC( S32 arg0 );
+    st_XORDEREDARRAY* FillPending();
+    st_XORDEREDARRAY* ReFillPending();
 
     void SetNPCStatus(zNPCCommon* npc, en_SM_NPC_STATUS status);
 
diff --git a/src/SB/Game/zNPCTypeCommon.h b/src/SB/Game/zNPCTypeCommon.h
index bb1e19f1f..af36bac10 100644
--- a/src/SB/Game/zNPCTypeCommon.h
+++ b/src/SB/Game/zNPCTypeCommon.h
@@ -10,7 +10,6 @@
 #include "xSFX.h"
 
 #include "zNPCSndTable.h"
-#include "zNPCSpawner.h"
 #include "zMovePoint.h"
 #include "zShrapnel.h"
 
@@ -340,6 +339,20 @@ enum en_NPC_MSG_DATA
     NPC_MDAT_FORCE = 0x7fffffff
 };
 
+enum en_SM_NOTICES
+{
+    SM_NOTE_NPCDIED,
+    SM_NOTE_NPCSTANDBY,
+    SM_NOTE_NPCALIVE,
+    SM_NOTE_DUPPAUSE,
+    SM_NOTE_DUPRESUME,
+    SM_NOTE_DUPSETDELAY,
+    SM_NOTE_DUPDEAD,
+    SM_NOTE_KILLKIDS,
+    SM_NOTE_NOMORE,
+    SM_NOTE_FORCE = 0x7fffffff
+};
+
 struct zNPCLassoInfo
 {
     en_LASSO_STATUS stage;
diff --git a/src/SB/Game/zNPCTypeDuplotron.h b/src/SB/Game/zNPCTypeDuplotron.h
index 6aa351884..d39fb3a5f 100644
--- a/src/SB/Game/zNPCTypeDuplotron.h
+++ b/src/SB/Game/zNPCTypeDuplotron.h
@@ -1,7 +1,7 @@
 #ifndef ZNPCTYPEDUPLOTRON_H
 #define ZNPCTYPEDUPLOTRON_H
 
-#include "zNPCTypeCommon.h"
+#include "zNPCSpawner.h"
 
 struct zNPCDuplotron : zNPCCommon
 {