diff --git a/src/overlays/actors/ovl_En_Mu/z_en_mu.c b/src/overlays/actors/ovl_En_Mu/z_en_mu.c
index 49b1f46b50..ae267dbfae 100644
--- a/src/overlays/actors/ovl_En_Mu/z_en_mu.c
+++ b/src/overlays/actors/ovl_En_Mu/z_en_mu.c
@@ -1,3 +1,9 @@
+/*
+ * File: z_en_mu.c
+ * Overlay: ovl_En_Mu
+ * Description: Haggling townspeople
+ */
+
 #include "z_en_mu.h"
 
 #define FLAGS 0x00000009
@@ -9,8 +15,8 @@ void EnMu_Destroy(Actor* thisx, GlobalContext* globalCtx);
 void EnMu_Update(Actor* thisx, GlobalContext* globalCtx);
 void EnMu_Draw(Actor* thisx, GlobalContext* globalCtx);
 
-void EnMu_Pose(Actor* this, GlobalContext* globalCtx);
-s32 EnMu_CheckDialogState(GlobalContext* globalCtx, EnMu* this);
+void EnMu_Pose(EnMu* this, GlobalContext* globalCtx);
+s16 EnMu_CheckDialogState(GlobalContext* globalCtx, Actor* thisx);
 
 extern AnimationHeader D_060003F4;
 extern FlexSkeletonHeader D_06004F70;
@@ -102,7 +108,9 @@ u16 EnMu_GetFaceReaction(GlobalContext* globalCtx, Actor* thisx) {
     return this->defFaceReaction;
 }
 
-s32 EnMu_CheckDialogState(GlobalContext* globalCtx, EnMu* this) {
+s16 EnMu_CheckDialogState(GlobalContext* globalCtx, Actor* thisx) {
+    EnMu* this = THIS;
+
     switch (func_8010BDBC(&globalCtx->msgCtx)) {
         case 0:
         case 1:
@@ -123,8 +131,8 @@ s32 EnMu_CheckDialogState(GlobalContext* globalCtx, EnMu* this) {
 }
 
 void EnMu_Init(Actor* thisx, GlobalContext* globalCtx) {
-    s32 pad;
     EnMu* this = THIS;
+    s32 pad;
 
     ActorShape_Init(&this->actor.shape, 0.0f, ActorShadow_DrawCircle, 160.0f);
     SkelAnime_InitFlex(globalCtx, &this->skelAnime, &D_06004F70, &D_060003F4, NULL, NULL, 0);
@@ -139,12 +147,12 @@ void EnMu_Init(Actor* thisx, GlobalContext* globalCtx) {
 
 void EnMu_Destroy(Actor* thisx, GlobalContext* globalCtx) {
     EnMu* this = THIS;
+
     SkelAnime_Free(&this->skelAnime, globalCtx);
 }
 
-void EnMu_Pose(Actor* thisx, GlobalContext* globalCtx) {
-    EnMu* this = THIS;
-    func_80034F54(globalCtx, &this->unk_20A, &this->unk_22A, 16);
+void EnMu_Pose(EnMu* this, GlobalContext* globalCtx) {
+    func_80034F54(globalCtx, this->unk_20A, this->unk_22A, 16);
 }
 
 void EnMu_Update(Actor* thisx, GlobalContext* globalCtx) {
@@ -159,12 +167,13 @@ void EnMu_Update(Actor* thisx, GlobalContext* globalCtx) {
 
     this->collider.dim.pos = pos;
 
-    CollisionCheck_SetOC(globalCtx, &globalCtx->colChkCtx, &this->collider);
+    CollisionCheck_SetOC(globalCtx, &globalCtx->colChkCtx, &this->collider.base);
     SkelAnime_Update(&this->skelAnime);
     Actor_UpdateBgCheckInfo(globalCtx, &this->actor, 0.0f, 0.0f, 0.0f, 4);
     this->actionFunc(this, globalCtx);
     talkDist = this->collider.dim.radius + 30.0f;
-    func_800343CC(globalCtx, this, &this->dialogState, talkDist, EnMu_GetFaceReaction, EnMu_CheckDialogState);
+    func_800343CC(globalCtx, &this->actor, &this->npcInfo.unk_00, talkDist, EnMu_GetFaceReaction,
+                  EnMu_CheckDialogState);
 
     this->actor.focus.pos = this->actor.world.pos;
     this->actor.focus.pos.y += 60.0f;
@@ -172,6 +181,7 @@ void EnMu_Update(Actor* thisx, GlobalContext* globalCtx) {
 
 s32 EnMu_OverrideLimbDraw(GlobalContext* globalCtx, s32 limbIndex, Gfx** dList, Vec3f* pos, Vec3s* rot, void* thisx) {
     EnMu* this = THIS;
+
     if ((limbIndex == 5) || (limbIndex == 6) || (limbIndex == 7) || (limbIndex == 11) || (limbIndex == 12) ||
         (limbIndex == 13) || (limbIndex == 14)) {
         rot->y += Math_SinS(this->unk_20A[limbIndex]) * 200.0f;
@@ -185,6 +195,7 @@ void EnMu_PostLimbDraw(GlobalContext* globalCtx, s32 limbIndex, Gfx** dList, Vec
 
 Gfx* EnMu_DisplayListSetColor(GraphicsContext* gfxCtx, u8 r, u8 g, u8 b, u8 a) {
     Gfx* dlist;
+
     dlist = Graph_Alloc(gfxCtx, 2 * sizeof(Gfx));
     gDPSetEnvColor(dlist, r, g, b, a);
     gSPEndDisplayList(dlist + 1);
@@ -193,8 +204,6 @@ Gfx* EnMu_DisplayListSetColor(GraphicsContext* gfxCtx, u8 r, u8 g, u8 b, u8 a) {
 
 void EnMu_Draw(Actor* thisx, GlobalContext* globalCtx) {
     EnMu* this = THIS;
-
-    // 2 sets of 5 colors for each actor in town with different colors
     Color_RGBA8 colors[2][5] = {
         { { 100, 130, 235, 0 }, { 160, 250, 60, 0 }, { 90, 60, 20, 0 }, { 30, 240, 200, 0 }, { 140, 70, 20, 0 } },
         { { 140, 70, 20, 0 }, { 30, 240, 200, 0 }, { 90, 60, 20, 0 }, { 160, 250, 60, 0 }, { 100, 130, 235, 0 } }
diff --git a/src/overlays/actors/ovl_En_Mu/z_en_mu.h b/src/overlays/actors/ovl_En_Mu/z_en_mu.h
index b50574a255..af708fa7cb 100644
--- a/src/overlays/actors/ovl_En_Mu/z_en_mu.h
+++ b/src/overlays/actors/ovl_En_Mu/z_en_mu.h
@@ -13,7 +13,7 @@ typedef struct EnMu {
     /* 0x014C */ SkelAnime skelAnime;
     /* 0x0190 */ EnMuActionFunc actionFunc;
     /* 0x0194 */ ColliderCylinder collider;
-    /* 0x01E0 */ struct_80034A14_arg1 dialogState;
+    /* 0x01E0 */ struct_80034A14_arg1 npcInfo;
     /* 0x0208 */ u16 defFaceReaction;
     /* 0x020A */ s16 unk_20A[16];
     /* 0x022A */ s16 unk_22A[17];