diff --git a/include/d/actor/d_a_bk.h b/include/d/actor/d_a_bk.h
index 3c2cda21c..c06d9cffa 100644
--- a/include/d/actor/d_a_bk.h
+++ b/include/d/actor/d_a_bk.h
@@ -95,7 +95,8 @@ public:
     /* 0x1190 */ cXyz m1190;
     /* 0x119C */ cXyz m119C;
     /* 0x11A8 */ cXyz m11A8;
-    /* 0x11B4 */ u8 m11B4[0x11CC - 0x11B4];
+    /* 0x11B4 */ u8 m11B4[0x11C0 - 0x11B4];
+    /* 0x11C0 */ cXyz m11C0;
     /* 0x11CC */ cXyz m11CC;
     /* 0x11D8 */ u8 m11D8[0x11F0 - 0x11D8];
     /* 0x11F0 */ u8 m11F0;
diff --git a/src/JSystem/JStudio/JStudio_JAudio/object-sound.cpp b/src/JSystem/JStudio/JStudio_JAudio/object-sound.cpp
index 2906ac1d8..a04b0c6e6 100644
--- a/src/JSystem/JStudio/JStudio_JAudio/object-sound.cpp
+++ b/src/JSystem/JStudio/JStudio_JAudio/object-sound.cpp
@@ -61,7 +61,7 @@ void TAdaptor_sound::adaptor_do_update(const JStudio::TObject* object, u32) {
     adaptor_getVariableValue_Vec(r30, sauVariableValue_3_POSITION_XYZ);
     if (control->mTransformOnSet) {
         Vec temp;
-        PSMTXMultVec(control->mTransformOnSet_Matrix, r30, &temp);
+        MTXMultVec(control->mTransformOnSet_Matrix, r30, &temp);
         *r30 = temp;
     }
 }
diff --git a/src/d/actor/d_a_bk.cpp b/src/d/actor/d_a_bk.cpp
index 000930267..5c6b1a42b 100644
--- a/src/d/actor/d_a_bk.cpp
+++ b/src/d/actor/d_a_bk.cpp
@@ -40,7 +40,7 @@ static Vec dummy_2080 = {1.0f, 1.0f, 1.0f};
 static u8 dummy_1811[] = {0x02, 0x00, 0x02, 0x01};
 static f64 dummy4[2] = {3.0, 0.5};
 
-static int bk_at_kind[] = { 0, 1, 0 };
+static dCcG_At_Spl bk_at_kind[] = { dCcG_At_Spl_UNK0, dCcG_At_Spl_UNK1, dCcG_At_Spl_UNK0 };
 static int bk_attack_ready_SE[] = { JA_SE_CV_BK_KAMAE, JA_SE_CV_BK_KAMAE, -0xDCF }; // TODO what is -0xDCF?
 static int bk_attack_go_SE[] = { JA_SE_CV_BK_ATTACK_S, JA_SE_CV_BK_ATTACK_L, -0xDCF }; // TODO what is -0xDCF?
 static int bk_attack_AP[] = { 1, 2, 1 };
@@ -1607,7 +1607,95 @@ temp_568:
 
 /* 00005D40-00006218       .text path_run__FP8bk_class */
 static void path_run(bk_class* i_this) {
-    /* Nonmatching */
+    i_this->dr.m710 = 0;
+    
+    switch (i_this->dr.m004) {
+    case 0:
+        anm_init(i_this, BK_BCK_BK_RUN, 10.0f, J3DFrameCtrl::LOOP_REPEAT_e, l_bkHIO.m070, BK_BAS_BK_RUN);
+        i_this->dr.m004 = 1;
+        // Fall-through
+    case 1:
+        dPath__Point* point = &i_this->ppd->mpPnt[i_this->m1216];
+        f32 x = point->mPos.x + i_this->m0320.x;
+        f32 z = point->mPos.z + i_this->m0320.z;
+        cXyz sp0C;
+        sp0C.x = x - i_this->current.pos.x;
+        sp0C.z = z - i_this->current.pos.z;
+        i_this->dr.m4D0 = cM_atan2s(sp0C.x, sp0C.z);
+        
+        if (sqrtf(sp0C.x*sp0C.x + sp0C.z*sp0C.z) < 100.0f) {
+            i_this->m1216 += i_this->m1217;
+            if (i_this->m1216 >= (s8)i_this->ppd->m_num) {
+                i_this->m1216 = i_this->ppd->m_num - 1;
+                i_this->m1217 = -1;
+                i_this->m121C = 1;
+            } else if (i_this->m1216 < 0) {
+                i_this->m1216 = 0;
+                i_this->m1217 = 1;
+                i_this->m121C = 1;
+            }
+        }
+        
+        if (i_this->m0300[1] == 0) {
+            i_this->m0300[1] = cM_rndF(50.0f) + 30.0f;
+            i_this->m0320.x = cM_rndFX(50.0f);
+            i_this->m0320.z = cM_rndFX(50.0f);
+        }
+        
+        if (i_this->dr.mAcch.ChkGroundHit()) {
+            s16 maxStep = 0x600;
+            if (i_this->m120C != 0) {
+                maxStep = 0x2000;
+            }
+            cLib_addCalcAngleS2(&i_this->current.angle.y, i_this->dr.m4D0, 4, maxStep);
+        }
+        
+        if (i_this->m120C == 0) {
+            i_this->speedF = l_bkHIO.m054;
+            if (i_this->m0300[2] == 0) {
+                i_this->m0300[2] = cM_rndF(100.0f) + 50.0f;
+                anm_init(i_this, BK_BCK_BK_JUMP1, 2.0f, J3DFrameCtrl::LOOP_ONCE_e, 1.0f, BK_BAS_BK_JUMP1);
+                i_this->m120C = 1;
+                i_this->m1210 = 0;
+            }
+        } else {
+            switch (i_this->m1210) {
+            case 0:
+                i_this->speedF = l_bkHIO.m054 * 1.2f;
+                if (i_this->dr.mAcch.ChkGroundHit() && i_this->mpMorf->isStop()) {
+                    anm_init(i_this, BK_BCK_BK_JUMP2, 0.0f, J3DFrameCtrl::LOOP_ONCE_e, 1.0f, BK_BAS_BK_JUMP2);
+                    i_this->m1210 = 1;
+                    i_this->m034C = l_bkHIO.m00C + 2;
+                    i_this->m034E = 4;
+                }
+                break;
+            case 1:
+                i_this->speedF = 0.0f;
+                if (i_this->dr.mAcch.ChkGroundHit() && i_this->mpMorf->isStop()) {
+                    i_this->m1210 = 0;
+                    anm_init(i_this, BK_BCK_BK_JUMP1, 2.0f, J3DFrameCtrl::LOOP_ONCE_e, 1.0f, BK_BAS_BK_JUMP1);
+                    i_this->speed.y = cM_rndF(REG8_F(7) + 10.0f) + 65.0f + REG8_F(8);
+                    fopAcM_monsSeStart(i_this, JA_SE_CV_BK_JUMP, 0);
+                }
+                
+                if (i_this->m0300[2] == 0) {
+                    i_this->m0300[2] = cM_rndF(100.0f) + 50.0f;
+                    anm_init(i_this, BK_BCK_BK_RUN, 10.0f, J3DFrameCtrl::LOOP_REPEAT_e, l_bkHIO.m070, BK_BAS_BK_RUN);
+                    i_this->m120C = 0;
+                }
+                break;
+            }
+        }
+        break;
+    }
+    
+    if (i_this->mPlayerDistance < l_bkHIO.m028 &&
+        daBk_player_view_check(i_this, &i_this->dr.m714->current.pos, i_this->m0332, l_bkHIO.m034)
+    ) {
+        i_this->dr.mState = 4;
+        i_this->m0300[1] = 0;
+        i_this->dr.m004 = 0;
+    }
 }
 
 /* 00006218-0000647C       .text attack_set__FP8bk_classUc */
@@ -2008,8 +2096,45 @@ static void fight_run(bk_class* i_this) {
 }
 
 /* 000073B8-000075E8       .text yari_hit_check__FP8bk_class */
-static void yari_hit_check(bk_class* i_this) {
-    /* Nonmatching */
+static fopAc_ac_c* yari_hit_check(bk_class* i_this) {
+    i_this->m11F0 = 0;
+    i_this->m11C0 = i_this->m11A8;
+    if (i_this->m0B7A < 0) { return NULL; }
+    
+    if (i_this->m0B5C == 2) {
+        i_this->m11A8 = i_this->dr.m100[0xE];
+    } else {
+        i_this->m11A8 = i_this->m1178;
+    }
+    
+    if (i_this->m0B78 != 0) { return NULL; }
+    if (i_this->m0B64 < i_this->m0B68 || i_this->m0B64 > i_this->m0B6C) { return NULL; }
+    
+    i_this->m11F0 <<= 1;
+    i_this->m1040.SetAtSpl(bk_at_kind[i_this->m0B5C]);
+    if ((int)i_this->m0B64 == (int)i_this->m0B68 && bk_attack_go_SE[i_this->m0B5C] != -0xDCF) {
+        fopAcM_monsSeStart(i_this, bk_attack_go_SE[i_this->m0B5C], 0);
+    }
+    
+    if (i_this->m11F1 == 0) {
+        i_this->m1040.StartCAt(i_this->m11A8);
+        i_this->m11F1 += 1;
+    } else {
+        i_this->m1040.MoveCAt(i_this->m11A8);
+        dComIfG_Ccsp()->Set(&i_this->m1040);
+        if (i_this->m02D5 != 0) {
+            // Using the dComIfG_Ccsp inline here breaks the match.
+            // dComIfG_Ccsp()->SetMass(&i_this->m1040, 3);
+            g_dComIfG_gameInfo.play.mCcS.SetMass(&i_this->m1040, 3);
+        }
+        if (i_this->m1040.ChkAtHit()) {
+            i_this->m0B78 = 5;
+            cCcD_Obj* hitObj = i_this->m1040.GetAtHitObj();
+            return hitObj->GetAc();
+        }
+    }
+    
+    return NULL;
 }
 
 /* 000075E8-00007EF4       .text fight__FP8bk_class */