diff --git a/include/n64dd.h b/include/n64dd.h
index 3eb1283875..d744711849 100644
--- a/include/n64dd.h
+++ b/include/n64dd.h
@@ -34,6 +34,8 @@ typedef struct n64ddStruct_80121AF0 {
     char unk_48[0x24];
     void (*unk_6C)(struct PlayState*, SceneDrawConfigFunc*);
     s32 (*unk_70)(DmaRequest* req, void* ram, uintptr_t vrom, size_t size, u32 unk, OSMesgQueue* queue, OSMesg msg);
+    char unk_74[4];
+    s32 (*unk_78)(struct PlayState*, void*, void*);
 } n64ddStruct_80121AF0; // size = ?
 
 void func_800ADA80(void);
diff --git a/src/code/z_demo.c b/src/code/z_demo.c
index 7417b78687..56a94816c0 100644
--- a/src/code/z_demo.c
+++ b/src/code/z_demo.c
@@ -1,6 +1,9 @@
 #include "global.h"
 #include "quake.h"
 #include "z64camera.h"
+#if PLATFORM_N64
+#include "n64dd.h"
+#endif
 
 #include "assets/scenes/indoors/tokinoma/tokinoma_scene.h"
 
@@ -111,7 +114,7 @@ EntranceCutscene sEntranceCutsceneTable[] = {
     { ENTR_KOKIRI_FOREST_12, 2, EVENTCHKINF_C6, gKokiriForestDekuSproutCs },
 };
 
-void* sUnusedEntranceCsList[] = {
+void* sCutscenesUnknownList[] = {
     gDekuTreeIntroCs, gJabuJabuIntroCs, gDcOpeningCs, gMinuetCs, gIceCavernSerenadeCs, gTowerBarrierCs,
 };
 
@@ -1702,6 +1705,9 @@ s32 CutsceneCmd_SetCamAt(PlayState* play, CutsceneContext* csCtx, u8* script, u8
 
 void CutsceneCmd_Text(PlayState* play, CutsceneContext* csCtx, CsCmdText* cmd) {
     u8 dialogState;
+#if PLATFORM_N64
+    s32 pad;
+#endif
     s16 endFrame;
 
     if ((csCtx->curFrame > cmd->startFrame) && (csCtx->curFrame <= cmd->endFrame)) {
@@ -2416,6 +2422,14 @@ void Cutscene_HandleConditionalTriggers(PlayState* play) {
 }
 
 void Cutscene_SetScript(PlayState* play, void* script) {
+#if PLATFORM_N64
+    if ((B_80121AF0 != NULL) && (B_80121AF0->unk_78 != NULL)) {
+        if (B_80121AF0->unk_78(play, script, sCutscenesUnknownList)) {
+            return;
+        }
+    }
+#endif
+
     if (SEGMENT_NUMBER(script) != 0) {
         play->csCtx.script = SEGMENTED_TO_VIRTUAL(script);
     } else {
diff --git a/src/code/z_eff_blure.c b/src/code/z_eff_blure.c
index 9dbc91a1bf..e0957a0164 100644
--- a/src/code/z_eff_blure.c
+++ b/src/code/z_eff_blure.c
@@ -399,76 +399,78 @@ void EffectBlure_DrawElemNoInterpolation(EffectBlure* this, EffectBlureElement*
     if (vtx == NULL) {
         PRINTF(T("z_eff_blure.c::SQ_NoInterpolate_disp() 頂点確保できず。\n",
                  "z_eff_blure.c::SQ_NoInterpolate_disp() Vertices cannot be secured.\n"));
-    } else {
-        vtx[0].v = baseVtx;
-        vtx[1].v = baseVtx;
-        vtx[2].v = baseVtx;
-        vtx[3].v = baseVtx;
-
-        ratio = (f32)elem->timer / (f32)this->elemDuration;
-        EffectBlure_GetComputedValues(this, index, ratio, &sp8C, &sp84, &sp7C, &sp78);
-
-        sp60.x = sp84.x;
-        sp60.y = sp84.y;
-        sp60.z = sp84.z;
-        Math_Vec3f_Diff(&sp60, &sp6C, &sp54);
-        Math_Vec3f_Scale(&sp54, 10.0f);
-        vtx[0].v.ob[0] = sp54.x;
-        vtx[0].v.ob[1] = sp54.y;
-        vtx[0].v.ob[2] = sp54.z;
-        vtx[0].v.cn[0] = sp78.r;
-        vtx[0].v.cn[1] = sp78.g;
-        vtx[0].v.cn[2] = sp78.b;
-        vtx[0].v.cn[3] = sp78.a;
-
-        if (1) {} // Necessary to match
-
-        sp60.x = sp8C.x;
-        sp60.y = sp8C.y;
-        sp60.z = sp8C.z;
-        Math_Vec3f_Diff(&sp60, &sp6C, &sp54);
-        Math_Vec3f_Scale(&sp54, 10.0f);
-        vtx[1].v.ob[0] = sp54.x;
-        vtx[1].v.ob[1] = sp54.y;
-        vtx[1].v.ob[2] = sp54.z;
-        vtx[1].v.cn[0] = sp7C.r;
-        vtx[1].v.cn[1] = sp7C.g;
-        vtx[1].v.cn[2] = sp7C.b;
-        vtx[1].v.cn[3] = sp7C.a;
-
-        ratio = (f32)(elem + 1)->timer / (f32)this->elemDuration;
-        EffectBlure_GetComputedValues(this, index + 1, ratio, &sp8C, &sp84, &sp7C, &sp78);
-
-        sp60.x = sp8C.x;
-        sp60.y = sp8C.y;
-        sp60.z = sp8C.z;
-        Math_Vec3f_Diff(&sp60, &sp6C, &sp54);
-        Math_Vec3f_Scale(&sp54, 10.0f);
-        vtx[2].v.ob[0] = sp54.x;
-        vtx[2].v.ob[1] = sp54.y;
-        vtx[2].v.ob[2] = sp54.z;
-        vtx[2].v.cn[0] = sp7C.r;
-        vtx[2].v.cn[1] = sp7C.g;
-        vtx[2].v.cn[2] = sp7C.b;
-        vtx[2].v.cn[3] = sp7C.a;
-
-        sp60.x = sp84.x;
-        sp60.y = sp84.y;
-        sp60.z = sp84.z;
-        Math_Vec3f_Diff(&sp60, &sp6C, &sp54);
-        Math_Vec3f_Scale(&sp54, 10.0f);
-        vtx[3].v.ob[0] = sp54.x;
-        vtx[3].v.ob[1] = sp54.y;
-        vtx[3].v.ob[2] = sp54.z;
-        vtx[3].v.cn[0] = sp78.r;
-        vtx[3].v.cn[1] = sp78.g;
-        vtx[3].v.cn[2] = sp78.b;
-        vtx[3].v.cn[3] = sp78.a;
-
-        gSPVertex(POLY_XLU_DISP++, vtx, 4, 0);
-        gSP2Triangles(POLY_XLU_DISP++, 0, 1, 2, 0, 0, 2, 3, 0);
+        goto end;
     }
 
+    vtx[0].v = baseVtx;
+    vtx[1].v = baseVtx;
+    vtx[2].v = baseVtx;
+    vtx[3].v = baseVtx;
+
+    ratio = (f32)elem->timer / (f32)this->elemDuration;
+    EffectBlure_GetComputedValues(this, index, ratio, &sp8C, &sp84, &sp7C, &sp78);
+
+    sp60.x = sp84.x;
+    sp60.y = sp84.y;
+    sp60.z = sp84.z;
+    Math_Vec3f_Diff(&sp60, &sp6C, &sp54);
+    Math_Vec3f_Scale(&sp54, 10.0f);
+    vtx[0].v.ob[0] = sp54.x;
+    vtx[0].v.ob[1] = sp54.y;
+    vtx[0].v.ob[2] = sp54.z;
+    vtx[0].v.cn[0] = sp78.r;
+    vtx[0].v.cn[1] = sp78.g;
+    vtx[0].v.cn[2] = sp78.b;
+    vtx[0].v.cn[3] = sp78.a;
+
+    sp60.x = sp8C.x;
+    sp60.y = sp8C.y;
+    sp60.z = sp8C.z;
+    Math_Vec3f_Diff(&sp60, &sp6C, &sp54);
+    Math_Vec3f_Scale(&sp54, 10.0f);
+    vtx[1].v.ob[0] = sp54.x;
+    vtx[1].v.ob[1] = sp54.y;
+    vtx[1].v.ob[2] = sp54.z;
+    vtx[1].v.cn[0] = sp7C.r;
+    vtx[1].v.cn[1] = sp7C.g;
+    vtx[1].v.cn[2] = sp7C.b;
+    vtx[1].v.cn[3] = sp7C.a;
+
+    ratio = (f32)(elem + 1)->timer / (f32)this->elemDuration;
+    EffectBlure_GetComputedValues(this, index + 1, ratio, &sp8C, &sp84, &sp7C, &sp78);
+
+    sp60.x = sp8C.x;
+    sp60.y = sp8C.y;
+    sp60.z = sp8C.z;
+    Math_Vec3f_Diff(&sp60, &sp6C, &sp54);
+    Math_Vec3f_Scale(&sp54, 10.0f);
+    vtx[2].v.ob[0] = sp54.x;
+    vtx[2].v.ob[1] = sp54.y;
+    vtx[2].v.ob[2] = sp54.z;
+    vtx[2].v.cn[0] = sp7C.r;
+    vtx[2].v.cn[1] = sp7C.g;
+    vtx[2].v.cn[2] = sp7C.b;
+    vtx[2].v.cn[3] = sp7C.a;
+
+    sp60.x = sp84.x;
+    sp60.y = sp84.y;
+    sp60.z = sp84.z;
+    Math_Vec3f_Diff(&sp60, &sp6C, &sp54);
+    Math_Vec3f_Scale(&sp54, 10.0f);
+    vtx[3].v.ob[0] = sp54.x;
+    vtx[3].v.ob[1] = sp54.y;
+    vtx[3].v.ob[2] = sp54.z;
+    vtx[3].v.cn[0] = sp78.r;
+    vtx[3].v.cn[1] = sp78.g;
+    vtx[3].v.cn[2] = sp78.b;
+    vtx[3].v.cn[3] = sp78.a;
+
+    if (1) {}
+
+    gSPVertex(POLY_XLU_DISP++, vtx, 4, 0);
+    gSP2Triangles(POLY_XLU_DISP++, 0, 1, 2, 0, 0, 2, 3, 0);
+
+end:
     CLOSE_DISPS(gfxCtx, "../z_eff_blure.c", 932);
 }
 
@@ -759,9 +761,6 @@ void EffectBlure_DrawSimpleVertices(GraphicsContext* gfxCtx, EffectBlure* this,
         MtxF sp94;
         f32 scale;
         s32 i;
-        s32 j;
-
-        j = 0;
 
         for (i = 0; i < this->numElements - 1; i++) {
             if (this->drawMode == 1) {
@@ -771,9 +770,7 @@ void EffectBlure_DrawSimpleVertices(GraphicsContext* gfxCtx, EffectBlure* this,
                 gDPPipeSync(POLY_XLU_DISP++);
             }
 
-            if (1) {} // Necessary to match
-
-            gSPVertex(POLY_XLU_DISP++, &vtx[j], 4, 0);
+            gSPVertex(POLY_XLU_DISP++, &vtx[4 * i], 4, 0);
             gSP2Triangles(POLY_XLU_DISP++, 0, 1, 3, 0, 0, 3, 2, 0);
 
             if (this->flags & 4) {
@@ -806,13 +803,11 @@ void EffectBlure_DrawSimpleVertices(GraphicsContext* gfxCtx, EffectBlure* this,
                     }
 
                     gSPMatrix(POLY_XLU_DISP++, mtx, G_MTX_NOPUSH | G_MTX_LOAD | G_MTX_MODELVIEW);
-                    gSPVertex(POLY_XLU_DISP++, &vtx[j], 4, 0);
+                    gSPVertex(POLY_XLU_DISP++, &vtx[4 * i], 4, 0);
                     gSP2Triangles(POLY_XLU_DISP++, 0, 1, 3, 0, 0, 3, 2, 0);
                     gSPMatrix(POLY_XLU_DISP++, &gMtxClear, G_MTX_NOPUSH | G_MTX_LOAD | G_MTX_MODELVIEW);
                 }
             }
-
-            j += 4;
         }
     }
 
diff --git a/src/code/z_eff_spark.c b/src/code/z_eff_spark.c
index 41da753687..ba39da6b80 100644
--- a/src/code/z_eff_spark.c
+++ b/src/code/z_eff_spark.c
@@ -222,41 +222,43 @@ void EffectSpark_Draw(void* thisx, GraphicsContext* gfxCtx) {
             vertices[j].v.tc[0] = 0;
             vertices[j].v.tc[1] = 1024;
             vertices[j].v.flag = 0;
+            j++;
 
-            vertices[j + 1].v.ob[0] = 32;
-            vertices[j + 1].v.ob[1] = 32;
-            vertices[j + 1].v.ob[2] = 0;
-            vertices[j + 1].v.cn[0] = sp1CF;
-            vertices[j + 1].v.cn[1] = sp1CE;
-            vertices[j + 1].v.cn[2] = sp1CD;
-            vertices[j + 1].v.cn[3] = sp1CC;
-            vertices[j + 1].v.tc[0] = 1024;
-            vertices[j + 1].v.tc[1] = 0;
-            vertices[j + 1].v.flag = 0;
+            vertices[j].v.ob[0] = 32;
+            vertices[j].v.ob[1] = 32;
+            vertices[j].v.ob[2] = 0;
+            vertices[j].v.cn[0] = sp1CF;
+            vertices[j].v.cn[1] = sp1CE;
+            vertices[j].v.cn[2] = sp1CD;
+            vertices[j].v.cn[3] = sp1CC;
+            vertices[j].v.tc[0] = 1024;
+            vertices[j].v.tc[1] = 0;
+            vertices[j].v.flag = 0;
+            j++;
 
-            vertices[j + 2].v.ob[0] = -32;
-            vertices[j + 2].v.ob[1] = 32;
-            vertices[j + 2].v.ob[2] = 0;
-            vertices[j + 2].v.cn[0] = sp1CB;
-            vertices[j + 2].v.cn[1] = sp1CA;
-            vertices[j + 2].v.cn[2] = sp1C9;
-            vertices[j + 2].v.cn[3] = sp1C8;
-            vertices[j + 2].v.tc[0] = 0;
-            vertices[j + 2].v.tc[1] = 0;
-            vertices[j + 2].v.flag = 0;
+            vertices[j].v.ob[0] = -32;
+            vertices[j].v.ob[1] = 32;
+            vertices[j].v.ob[2] = 0;
+            vertices[j].v.cn[0] = sp1CB;
+            vertices[j].v.cn[1] = sp1CA;
+            vertices[j].v.cn[2] = sp1C9;
+            vertices[j].v.cn[3] = sp1C8;
+            vertices[j].v.tc[0] = 0;
+            vertices[j].v.tc[1] = 0;
+            vertices[j].v.flag = 0;
+            j++;
 
-            vertices[j + 3].v.ob[0] = 32;
-            vertices[j + 3].v.ob[1] = -32;
-            vertices[j + 3].v.ob[2] = 0;
-            vertices[j + 3].v.cn[0] = sp1C7;
-            vertices[j + 3].v.cn[1] = sp1C6;
-            vertices[j + 3].v.cn[2] = sp1C5;
-            vertices[j + 3].v.cn[3] = sp1C4;
-            vertices[j + 3].v.tc[0] = 1024;
-            vertices[j + 3].v.tc[1] = 1024;
-            vertices[j + 3].v.flag = 0;
-
-            j += 4;
+            vertices[j].v.ob[0] = 32;
+            vertices[j].v.ob[1] = -32;
+            vertices[j].v.ob[2] = 0;
+            vertices[j].v.cn[0] = sp1C7;
+            vertices[j].v.cn[1] = sp1C6;
+            vertices[j].v.cn[2] = sp1C5;
+            vertices[j].v.cn[3] = sp1C4;
+            vertices[j].v.tc[0] = 1024;
+            vertices[j].v.tc[1] = 1024;
+            vertices[j].v.flag = 0;
+            j++;
 
             mtx = SkinMatrix_MtxFToNewMtx(gfxCtx, &sp12C);
             if (mtx == NULL) {