diff --git a/LEGO1/lego/legoomni/src/audio/mxbackgroundaudiomanager.cpp b/LEGO1/lego/legoomni/src/audio/mxbackgroundaudiomanager.cpp
index d89f5cd4..e79f2a1b 100644
--- a/LEGO1/lego/legoomni/src/audio/mxbackgroundaudiomanager.cpp
+++ b/LEGO1/lego/legoomni/src/audio/mxbackgroundaudiomanager.cpp
@@ -261,7 +261,7 @@ MxResult MxBackgroundAudioManager::PlayMusic(
 
 		m_action2.SetAtomId(p_action.GetAtomId());
 		m_action2.SetObjectId(p_action.GetObjectId());
-		m_action2.SetUnknown84(this);
+		m_action2.SetNotificationObject(this);
 		m_action2.SetOrigin(this);
 
 		MxResult result = Start(&m_action2);
diff --git a/LEGO1/lego/legoomni/src/worlds/score.cpp b/LEGO1/lego/legoomni/src/worlds/score.cpp
index b5b66d87..76f987e2 100644
--- a/LEGO1/lego/legoomni/src/worlds/score.cpp
+++ b/LEGO1/lego/legoomni/src/worlds/score.cpp
@@ -146,7 +146,7 @@ void Score::ReadyWorld()
 	MxDSAction action;
 	action.SetObjectId(InfoscorScript::c_nin001pr_RunAnim);
 	action.SetAtomId(m_atomId);
-	action.SetUnknown84(this);
+	action.SetNotificationObject(this);
 	Start(&action);
 
 	if (m_state->GetTutorialFlag()) {
diff --git a/LEGO1/omni/include/mxdsaction.h b/LEGO1/omni/include/mxdsaction.h
index 1597038e..7e2c4d89 100644
--- a/LEGO1/omni/include/mxdsaction.h
+++ b/LEGO1/omni/include/mxdsaction.h
@@ -104,8 +104,8 @@ public:
 	// FUNCTION: BETA10 0x10015430
 	void SetUp(const Vector3& p_up) { m_up = p_up; }
 
-	MxCore* GetUnknown84() { return m_unk0x84; }
-	void SetUnknown84(MxCore* p_unk0x84) { m_unk0x84 = p_unk0x84; }
+	MxCore* GetNotificationObject() { return m_notificationObject; }
+	void SetNotificationObject(MxCore* p_notificationObject) { m_notificationObject = p_notificationObject; }
 	MxCore* GetOrigin() { return m_origin; }
 	void SetOrigin(MxCore* p_origin) { m_origin = p_origin; }
 
@@ -117,20 +117,20 @@ public:
 	// MxDSAction::`scalar deleting destructor'
 
 protected:
-	MxU32 m_sizeOnDisk;         // 0x2c
-	MxU32 m_flags;              // 0x30
-	MxLong m_startTime;         // 0x34
-	MxLong m_duration;          // 0x38
-	MxS32 m_loopCount;          // 0x3c
-	Mx3DPointFloat m_location;  // 0x40
-	Mx3DPointFloat m_direction; // 0x54
-	Mx3DPointFloat m_up;        // 0x68
-	char* m_extraData;          // 0x7c
-	MxU16 m_extraLength;        // 0x80
-	MxCore* m_unk0x84;          // 0x84
-	undefined4 m_unk0x88;       // 0x88
-	MxCore* m_origin;           // 0x8c
-	MxLong m_unk0x90;           // 0x90
+	MxU32 m_sizeOnDisk;           // 0x2c
+	MxU32 m_flags;                // 0x30
+	MxLong m_startTime;           // 0x34
+	MxLong m_duration;            // 0x38
+	MxS32 m_loopCount;            // 0x3c
+	Mx3DPointFloat m_location;    // 0x40
+	Mx3DPointFloat m_direction;   // 0x54
+	Mx3DPointFloat m_up;          // 0x68
+	char* m_extraData;            // 0x7c
+	MxU16 m_extraLength;          // 0x80
+	MxCore* m_notificationObject; // 0x84
+	undefined4 m_unk0x88;         // 0x88
+	MxCore* m_origin;             // 0x8c
+	MxLong m_unk0x90;             // 0x90
 };
 
 #endif // MXDSACTION_H
diff --git a/LEGO1/omni/src/action/mxdsaction.cpp b/LEGO1/omni/src/action/mxdsaction.cpp
index eeb3dc68..caab7f99 100644
--- a/LEGO1/omni/src/action/mxdsaction.cpp
+++ b/LEGO1/omni/src/action/mxdsaction.cpp
@@ -28,7 +28,7 @@ MxDSAction::MxDSAction()
 	m_location.Fill(FLT_MAX);
 	m_direction.Fill(FLT_MAX);
 	m_up.Fill(FLT_MAX);
-	m_unk0x84 = NULL;
+	m_notificationObject = NULL;
 	m_unk0x88 = 0;
 	m_origin = NULL;
 	m_unk0x90 = INT_MIN;
@@ -89,7 +89,7 @@ void MxDSAction::CopyFrom(MxDSAction& p_dsAction)
 	m_direction = p_dsAction.m_direction;
 	m_up = p_dsAction.m_up;
 	AppendExtra(p_dsAction.m_extraLength, p_dsAction.m_extraData);
-	m_unk0x84 = p_dsAction.m_unk0x84;
+	m_notificationObject = p_dsAction.m_notificationObject;
 	m_unk0x88 = p_dsAction.m_unk0x88;
 	m_origin = p_dsAction.m_origin;
 	m_unk0x90 = p_dsAction.m_unk0x90;
diff --git a/LEGO1/omni/src/main/mxomni.cpp b/LEGO1/omni/src/main/mxomni.cpp
index d7e79bb0..fd36b683 100644
--- a/LEGO1/omni/src/main/mxomni.cpp
+++ b/LEGO1/omni/src/main/mxomni.cpp
@@ -271,9 +271,9 @@ MxResult MxOmni::CreatePresenter(MxStreamController* p_controller, MxDSAction& p
 					NotificationManager()->Send(sender, MxType4NotificationParam(this, &p_action, object));
 				}
 
-				if (p_action.GetUnknown84()) {
+				if (p_action.GetNotificationObject()) {
 					NotificationManager()->Send(
-						p_action.GetUnknown84(),
+						p_action.GetNotificationObject(),
 						MxStartActionNotificationParam(c_notificationStartAction, object, &p_action, FALSE)
 					);
 				}
diff --git a/LEGO1/omni/src/stream/mxdiskstreamcontroller.cpp b/LEGO1/omni/src/stream/mxdiskstreamcontroller.cpp
index 40ae8ae9..0e34ed5a 100644
--- a/LEGO1/omni/src/stream/mxdiskstreamcontroller.cpp
+++ b/LEGO1/omni/src/stream/mxdiskstreamcontroller.cpp
@@ -316,7 +316,7 @@ MxResult MxDiskStreamController::VTable0x20(MxDSAction* p_action)
 	if (entry) {
 		MxDSStreamingAction* action = new MxDSStreamingAction(*p_action, 0);
 		action->SetUnknown28(entry->GetUnknown28());
-		action->SetUnknown84(entry->GetUnknown84());
+		action->SetNotificationObject(entry->GetNotificationObject());
 		action->SetOrigin(entry->GetOrigin());
 		action->SetUnknowna0(entry->GetUnknowna4());
 
diff --git a/LEGO1/omni/src/stream/mxdsbuffer.cpp b/LEGO1/omni/src/stream/mxdsbuffer.cpp
index 4b7386b2..d9216b3f 100644
--- a/LEGO1/omni/src/stream/mxdsbuffer.cpp
+++ b/LEGO1/omni/src/stream/mxdsbuffer.cpp
@@ -207,7 +207,7 @@ MxResult MxDSBuffer::StartPresenterFromAction(
 	if (!m_unk0x30->GetInternalAction()) {
 		p_objectheader->SetAtomId(p_action1->GetAtomId());
 		p_objectheader->SetUnknown28(p_action1->GetUnknown28());
-		p_objectheader->SetUnknown84(p_action1->GetUnknown84());
+		p_objectheader->SetNotificationObject(p_action1->GetNotificationObject());
 		p_objectheader->SetOrigin(p_action1->GetOrigin());
 		p_objectheader->SetUnknown90(p_action1->GetUnknown90());
 		p_objectheader->MergeFrom(*p_action1);