diff --git a/spec b/spec
index 43f0984284..c36219978a 100644
--- a/spec
+++ b/spec
@@ -2206,9 +2206,7 @@ endseg
 beginseg
     name "ovl_En_Ani"
     include "build/src/overlays/actors/ovl_En_Ani/z_en_ani.o"
-    include "build/data/overlays/actors/z_en_ani.data.o"
-    include "build/data/overlays/actors/z_en_ani.rodata.o"
-    include "build/data/overlays/actors/z_en_ani.reloc.o"
+    include "build/src/overlays/actors/ovl_En_Ani/z_en_ani_reloc.o"
 endseg
 
 beginseg
diff --git a/src/overlays/actors/ovl_En_Ani/z_en_ani.c b/src/overlays/actors/ovl_En_Ani/z_en_ani.c
index a71924b895..43540fb0b9 100644
--- a/src/overlays/actors/ovl_En_Ani/z_en_ani.c
+++ b/src/overlays/actors/ovl_En_Ani/z_en_ani.c
@@ -1,15 +1,35 @@
 #include "z_en_ani.h"
 
-#define ROOM 0x00
+#define ROOM  0x00
 #define FLAGS 0x00000009
 
+void func_809B0370(EnAni* this, ActorFunc actionFunc);
 void EnAni_Init(EnAni* this, GlobalContext* globalCtx);
 void EnAni_Destroy(EnAni* this, GlobalContext* globalCtx);
+s32 func_809B04B4(EnAni* this, GlobalContext* globalCtx, u16 arg2);
+void func_809B04F0(EnAni* this, GlobalContext* globalCtx);
+void func_809B0524(EnAni* this, GlobalContext* globalCtx);
+void func_809B0558(EnAni* this, GlobalContext* globalCtx);
+void func_809B05F0(EnAni* this, GlobalContext* globalCtx);
+void func_809B064C(EnAni* this, GlobalContext* globalCtx);
+void func_809B07F8(EnAni* this, GlobalContext* globalCtx);
+void func_809B0988(EnAni* this, GlobalContext* globalCtx);
+void func_809B0994(EnAni* this, GlobalContext* globalCtx);
+void func_809B0A28(EnAni* this, GlobalContext* globalCtx);
+void func_809B0A6C(EnAni* this, GlobalContext* globalCtx);
 void EnAni_Update(EnAni* this, GlobalContext* globalCtx);
+s32  func_809B0D90(s32 arg0, s32 arg1, s32 arg2, s32 arg3, Vec3s* arg4, EnAni* arg5);
+void func_809B0DD4(s32 arg0, s32 arg1, s32 arg2, s32 arg3, EnAni* this);
 void EnAni_Draw(EnAni* this, GlobalContext* globalCtx);
 
-/*
-const ActorInit En_Ani_InitVars = {
+extern SkeletonHeader D_060000F0;
+extern AnimationHeader D_060067B8;
+extern AnimationHeader D_060070F0;
+extern AnimationHeader D_060076EC;
+extern void* D_8002B5EC; //shadowDrawFunc
+
+const ActorInit En_Ani_InitVars =
+{
     ACTOR_EN_ANI,
     ACTORTYPE_NPC,
     ROOM,
@@ -21,39 +41,398 @@ const ActorInit En_Ani_InitVars = {
     (ActorFunc)EnAni_Update,
     (ActorFunc)EnAni_Draw,
 };
-*/
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_En_Ani/func_809B0370.s")
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_En_Ani/EnAni_Init.s")
+static ColliderCylinderInit cylinderInitData = {
+    0x0A, 0x00, 0x11, 0x39, 
+    0x10, 0x01, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00,
+    0x00000000, 
+    0x00, 0x00, 0x00, 0x00,
+    0xFFCFFFFF,
+    0x00, 0x00, 0x00, 0x00,
+    0x00, 0x01, 0x01, 0x00,
+    0x001E, 0x0028,
+    0x00000000000000000000,
+};
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_En_Ani/EnAni_Destroy.s")
+static InitChainEntry initChain[] = {
+    ICHAIN_VEC3F_DIV1000(scale, 10, ICHAIN_CONTINUE),
+    ICHAIN_F32(unk_F4, 850, ICHAIN_STOP),
+};
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_En_Ani/func_809B04B4.s")
+static Vec3f EnAniVec = {
+    800.0f, 500.0f, 0.0f,
+};
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_En_Ani/func_809B04F0.s")
+UNK_PTR D_809B0F80[] = {
+    0x06000408, 
+    0x06001518, 
+    0x06001D18, 
+    0x00000000,
+};
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_En_Ani/func_809B0524.s")
+//EnAni_SetupAction
+void func_809B0370(EnAni* this, ActorFunc actionFunc)
+{
+    this->actionFunc = actionFunc;
+}
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_En_Ani/func_809B0558.s")
+void EnAni_Init(EnAni* this, GlobalContext* globalCtx)
+{
+    AnimationHeader* anim;
+    u32 pad;
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_En_Ani/func_809B05F0.s")
+    anim = &D_060076EC;
+    Actor_ProcessInitChain(&this->actor, initChain);
+    ActorShape_Init(&this->actor.shape, -2800.0f, &D_8002B5EC, 36.0f);
+    SkelAnime_InitSV(globalCtx, &this->skelAnime, &D_060000F0, anim, &this->unk_1DC, &this->unk_23C, 0x10);
+    SkelAnime_ChangeAnimDefaultStop(&this->skelAnime, anim);
+    ActorCollider_AllocCylinder(globalCtx, &this->collider);
+    ActorCollider_InitCylinder(globalCtx, &this->collider, &this->actor, &cylinderInitData);
+    this->actor.sub_98.mass = 0xFF;
+    if (LINK_IS_CHILD)
+    {
+        func_809B0370(this, func_809B064C);
+    }
+    else
+    {
+        func_809B0370(this, func_809B07F8);
+    }
+    this->unk_2AA = 0;
+    this->unk_2A8 = 0;
+    this->actor.minVelocityY = -1.0f;
+    this->actor.velocity.y = -1.0f;
+}
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_En_Ani/func_809B064C.s")
+void EnAni_Destroy(EnAni* this, GlobalContext* globalCtx)
+{
+    ColliderCylinderMain *new_var;
+    new_var = &this->collider;
+    ActorCollider_FreeCylinder(globalCtx, &this->collider);
+}
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_En_Ani/func_809B07F8.s")
+s32 func_809B04B4(EnAni* this, GlobalContext* globalCtx, u16 textId)
+{
+    this->actor.textId = textId;
+    this->unk_2A8 = (this->unk_2A8 | 1);
+    func_8002F2CC(&this->actor, globalCtx, 100.0f);
+    return 0;
+}
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_En_Ani/func_809B0988.s")
+void func_809B04F0(EnAni* this, GlobalContext* globalCtx)
+{
+    if (func_8002F334(&this->actor, globalCtx) != 0)
+    {
+        func_809B0370(this, func_809B064C);
+    }
+}
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_En_Ani/func_809B0994.s")
+void func_809B0524(EnAni* this, GlobalContext* globalCtx)
+{
+    if (func_8002F334(&this->actor, globalCtx) != 0)
+    {
+        func_809B0370(this, func_809B07F8);
+    }
+}
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_En_Ani/func_809B0A28.s")
+void func_809B0558(EnAni* this, GlobalContext* globalCtx)
+{
+    if (func_8002F410(&this->actor, globalCtx) != 0)
+    {
+        this->actor.attachedA = 0;
+        if (LINK_IS_CHILD)
+        {
+            func_809B0370(this, func_809B04F0);
+        }
+        else
+        {
+            func_809B0370(this, func_809B0524);
+        }
+        gSaveContext.item_get_inf[1] = gSaveContext.item_get_inf[1] | 0x20;
+        return;
+    }
+    func_8002F434(&this->actor, globalCtx, GI_HEART_PIECE, 10000.0f, 200.0f);
+}
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_En_Ani/func_809B0A6C.s")
+void func_809B05F0(EnAni* this, GlobalContext* globalCtx)
+{
+    if (func_8002F334(this, globalCtx) != 0)
+    {
+        func_809B0370(this, func_809B0558);
+    }
+    func_8002F434(this, globalCtx, GI_HEART_PIECE, 10000.0f, 200.0f);
+}
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_En_Ani/EnAni_Update.s")
+void func_809B064C(EnAni* this, GlobalContext* globalCtx)
+{
+    u16 phi_a2;
+    s16 temp_v1;
+    s32 temp_ret;
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_En_Ani/func_809B0D90.s")
+    temp_ret = Text_GetFaceReaction(globalCtx, 0xA);
+    phi_a2 = temp_ret & 0xffff;
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_En_Ani/func_809B0DD4.s")
+    if (!phi_a2) {}
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_En_Ani/EnAni_Draw.s")
+    if (temp_ret == 0)
+    {
+        phi_a2 = gSaveContext.night_flag ? 0x5051U : 0x5050U;
+    }
+
+    temp_v1 = (this->actor.rotTowardsLinkY - this->actor.shape.rot.y);
+    if (func_8002F194(&this->actor, globalCtx) != 0)
+    {
+        if (this->actor.textId == 0x5056) // "To get a good view..."
+        {
+            func_809B0370(this, func_809B04F0);
+            return;
+        }
+        if (this->actor.textId == 0x5055) // "...I'll give you this as a memento."
+        {
+
+            func_809B0370(this, func_809B05F0);
+            return;
+        }
+        func_809B0370(this, func_809B04F0);
+        return;
+    }
+    if (temp_v1 >= -0x36AF)
+    {
+        if (temp_v1 < 0)
+        {
+            if (this->actor.xzDistanceFromLink < 150.0f)
+            {
+                if (-80.0f < this->actor.yDistanceFromLink)
+                {
+                    if ((gSaveContext.item_get_inf[1] & 0x20) != 0)
+                    {
+                        func_809B04B4(this, globalCtx, 0x5056); // "To get a good view..."
+                        return;
+                    }
+                    func_809B04B4(this, globalCtx, 0x5055); // "...I'll give you this as a memento."
+                    return;
+                }
+            }
+        }
+    }
+    if (temp_v1 >= -0x3e7)
+    {
+        if (temp_v1 < 0x36b0)
+        {
+            if (this->actor.xzDistanceFromLink < 350.0f)
+            {
+                func_809B04B4(this, globalCtx, phi_a2);
+            }
+        }
+    }
+}
+
+void func_809B07F8(EnAni* this, GlobalContext* globalCtx)
+{
+    s16 pad;
+    s16 rotDiff;
+    u16 textId;
+
+    rotDiff = (this->actor.rotTowardsLinkY - this->actor.shape.rot.y);
+    if (func_8002F194(&this->actor, globalCtx) != 0)
+    {
+        if (this->actor.textId == 0x5056) // "To get a good view..."
+        {
+ 
+            func_809B0370(this, func_809B0524);
+            return;
+        }
+        if (this->actor.textId == 0x5055) // "...I'll give you this as a memento."
+        {
+            func_809B0370(this, func_809B05F0);
+            return;
+        }
+        func_809B0370(this, func_809B0524);
+        return;
+    }
+    if (rotDiff >= -0x36AF)
+    {
+        if (rotDiff < 0)
+        {
+            if (this->actor.xzDistanceFromLink < 150.0f)
+            {
+                if (-80.0f < this->actor.yDistanceFromLink)
+                {
+                    if ((gSaveContext.item_get_inf[1] & 0x20) != 0)
+                    {
+                        func_809B04B4(this, globalCtx, 0x5056); // "To get a good view..."
+                        return;
+                    }
+                    func_809B04B4(this, globalCtx, 0x5055); // "...I'll give you this as a memento."
+                    return;
+                }
+            }
+        }
+    }
+    if (rotDiff >= -0x3E7)
+    {
+        if (rotDiff < 0x36B0)
+        {
+            if (this->actor.xzDistanceFromLink < 350.0f)
+            {
+                if ((gSaveContext.event_chk_inf[2] & 0x8000) == 0)
+                {
+                    textId = 0x5052; // "...Something is happening on Death Mountain!"
+                }
+                else
+                {
+                    textId = (gSaveContext.item_get_inf[1] & 0x20) ? 0x5054 : 0x5053; // "I don't feel like getting down..."
+                                                                                      // "...Death Mountain is back to normal!"
+                }
+                func_809B04B4(this, globalCtx, textId);
+            }
+        }
+    }
+}
+
+void func_809B0988(EnAni* this, GlobalContext* globalCtx) { }
+
+void func_809B0994(EnAni* this, GlobalContext* globalCtx)
+{
+    GenericAnimationHeader *objSegFrameCount = &D_060070F0.genericHeader;
+    AnimationHeader *objSegChangeAnime = &D_060070F0;
+
+    if (globalCtx->csCtx.actorActions[0]->action == 4)
+    {
+        SkelAnime_ChangeAnim(&this->skelAnime, objSegChangeAnime, 1.0f, 0.0f, (f32) SkelAnime_GetFrameCount(objSegFrameCount), 2, -4.0f);
+        this->unk_2AA += 1;
+        this->actor.shape.shadowDrawFunc = &D_8002B5EC;
+    }
+}
+
+void func_809B0A28(EnAni* this, GlobalContext* globalCtx)
+{   
+    if (SkelAnime_FrameUpdateMatrix(&this->skelAnime) != 0)
+    {
+        this->unk_2AA += 1;
+    }
+}
+
+void func_809B0A6C(EnAni* this, GlobalContext* globalCtx)
+{
+    if (SkelAnime_FrameUpdateMatrix(&this->skelAnime) != 0)
+    {
+        this->skelAnime.animCurrentFrame = 0.0f;
+    }
+    if (globalCtx->csCtx.actorActions[0]->action == 2)
+    {
+        SkelAnime_ChangeAnim(&this->skelAnime, &D_060067B8, 1.0f, 0.0f, SkelAnime_GetFrameCount(&D_060067B8.genericHeader), 2, 0.0f);
+        this->actor.shape.shadowDrawFunc = NULL;
+        this->unk_2AA++;
+    }
+}
+
+void EnAni_Update(EnAni* this, GlobalContext* globalCtx)
+{
+    ColliderCylinderMain* temp_a2;
+    u32 phi_v0;
+    u32 pad;
+    u32 pad2;
+
+    temp_a2 = &this->collider;
+    ActorCollider_Cylinder_Update(&this->actor, temp_a2);
+    Actor_CollisionCheck_SetOT(globalCtx, &globalCtx->sub_11E60, temp_a2);
+    Actor_MoveForward(&this->actor);
+    func_8002E4B4(globalCtx, &this->actor, 0.0f, 0.0f, 0.0f, 4);
+    if ((globalCtx->csCtx.state != 0) && (globalCtx->csCtx.actorActions[0] != 0))
+    {
+        switch(this->unk_2AA){
+            case 0 : func_809B0A6C(this, globalCtx); break;
+            case 1 : func_809B0A28(this, globalCtx); break;
+            case 2 : func_809B0994(this, globalCtx); break;
+            case 3 : func_809B0A28(this, globalCtx); break;
+            case 4 : func_809B0988(this, globalCtx); break;
+        }
+
+        if (globalCtx->csCtx.frames == 0x64)
+        {
+            func_800788CC(NA_SE_IT_EARTHQUAKE);
+        }
+    }
+    else
+    {
+        if (SkelAnime_FrameUpdateMatrix(&this->skelAnime) != 0)
+        {
+            this->skelAnime.animCurrentFrame = 0.0f;
+        }
+        this->actionFunc(this, globalCtx);
+    }
+    if ((this->unk_2A8 & 1) != 0)
+    {
+        func_80038290(globalCtx, &this->actor, &this->unk_29C, &this->unk_2A2, this->actor.posRot2.pos);
+        this->unk_2A2.z = 0;
+        this->unk_2A2.y = this->unk_2A2.z;
+        this->unk_2A2.x = this->unk_2A2.z;
+    }
+    else
+    {
+        Math_SmoothScaleMaxMinS(&this->unk_29C.x, 0, 6, 6200, 100);
+        Math_SmoothScaleMaxMinS(&this->unk_29C.y, 0, 6, 6200, 100);
+        Math_SmoothScaleMaxMinS(&this->unk_2A2.x, 0, 6, 6200, 100);
+        Math_SmoothScaleMaxMinS(&this->unk_2A2.y, 0, 6, 6200, 100);
+    }
+
+    if (this->unk_2AE == 0) {
+        phi_v0 = 0;
+    }
+    else {
+        this->unk_2AE -= 1;
+        phi_v0 = this->unk_2AE;
+    }
+
+    if (phi_v0 == 0)
+    {
+        this->unk_2AE = Math_Rand_S16Offset(0x3c, 0x3c);
+    }
+    this->unk_2AC = this->unk_2AE;
+    if (this->unk_2AC >= 3)
+    {
+        this->unk_2AC = 0;
+    }
+}
+
+s32 func_809B0D90(s32 arg0, s32 arg1, s32 arg2, s32 arg3, Vec3s* arg4, EnAni* arg5)
+{
+    EnAni *new_var;
+    new_var = arg5;
+
+    if (arg1 == 0xf)
+    {
+        arg4->x += arg5->unk_29C.y;
+        arg4->z += arg5->unk_29C.x;
+    }
+    return 0;
+}
+
+void func_809B0DD4(s32 arg0, s32 arg1, s32 arg2, s32 arg3, EnAni* this)
+{
+    if (arg1 == 0xf)
+    {
+        Matrix_MultVec3f(&EnAniVec, &this->actor.posRot2.pos);
+    }
+}
+
+void EnAni_Draw(EnAni* this, GlobalContext* globalCtx)
+{
+    UNK_PTR* temp;
+    u32 pad;
+    GraphicsContext* gfxCtx;
+    Gfx* dispRefs[4];
+
+    temp = D_809B0F80;
+    gfxCtx = globalCtx->state.gfxCtx;
+
+    Graph_OpenDisps(dispRefs, globalCtx->state.gfxCtx, "../z_en_ani.c", 0x2CF);
+    func_800943C8(globalCtx->state.gfxCtx);
+
+    gSPSegment(gfxCtx->polyOpa.p++, 0x08, SEGMENTED_TO_VIRTUAL(temp[this->unk_2AC]));
+    
+    SkelAnime_DrawSV(globalCtx, this->skelAnime.skeleton, this->skelAnime.actorDrawTbl, 
+                    this->skelAnime.dListCount, func_809B0D90, func_809B0DD4, &this->actor);
+    Graph_CloseDisps(dispRefs, globalCtx->state.gfxCtx, "../z_en_ani.c", 0x2E0);
+}
diff --git a/src/overlays/actors/ovl_En_Ani/z_en_ani.h b/src/overlays/actors/ovl_En_Ani/z_en_ani.h
index 45b7e37208..6ca602e12e 100644
--- a/src/overlays/actors/ovl_En_Ani/z_en_ani.h
+++ b/src/overlays/actors/ovl_En_Ani/z_en_ani.h
@@ -4,11 +4,22 @@
 #include <ultra64.h>
 #include <global.h>
 
-typedef struct {
+typedef struct
+{
     /* 0x0000 */ Actor actor;
-    /* 0x014C */ char unk_14C[0x168];
+    /* 0x014C */ ColliderCylinderMain collider;
+    /* 0x0198 */ SkelAnime skelAnime;
+    /* 0x01DC */ u8   unk_1DC;
+    /* 0x01DD */ char unk_1DD[0x5F];
+    /* 0x023C */ u16  unk_23C;
+    /* 0x023E */ char unk_23E[0x5E];
+    /* 0x029C */ Vec3s unk_29C;
+    /* 0x02A2 */ Vec3s unk_2A2;
+    /* 0x02A8 */ u16  unk_2A8;
+    /* 0x02AA */ u16  unk_2AA;
+    /* 0x02AC */ s16  unk_2AC;
+    /* 0x02AE */ s16  unk_2AE;
+    /* 0x02B0 */ ActorFunc actionFunc;
 } EnAni; // size = 0x02B4
 
-extern const ActorInit En_Ani_InitVars;
-
 #endif
diff --git a/undefined_syms.txt b/undefined_syms.txt
index 4052d6ada8..9b47515321 100644
--- a/undefined_syms.txt
+++ b/undefined_syms.txt
@@ -480,3 +480,10 @@ D_060012C0 = 0x060012C0;
 // z_obj_comb
 D_050095B0 = 0x050095B0;
 D_05009940 = 0x05009940;
+
+// z_en_ani
+D_060067B8 = 0x060067B8;
+D_060070F0 = 0x060070F0;
+D_8002B5EC = 0x8002B5EC;
+D_060076EC = 0x060076EC;
+D_060000F0 = 0x060000F0;