diff --git a/LEGO1/lego/legoomni/include/act3.h b/LEGO1/lego/legoomni/include/act3.h
index b44c1d59..306da129 100644
--- a/LEGO1/lego/legoomni/include/act3.h
+++ b/LEGO1/lego/legoomni/include/act3.h
@@ -24,13 +24,14 @@ struct Act3ListElement {
 };
 
 // SIZE 0x10
-class Act3List {
+class Act3List : private list<Act3ListElement> {
 public:
 	Act3List() { m_unk0x04 = 0; }
 
+	void FUN_100720d0(MxU32 p_objectId);
+
 private:
-	list<Act3ListElement> m_unk0x00; // 0x00
-	undefined4 m_unk0x04;            // 0x0c
+	undefined4 m_unk0x04; // 0x0c
 };
 
 // VTABLE: LEGO1 0x100d4fc8
@@ -108,6 +109,8 @@ class Act3 : public LegoWorld {
 	void FUN_10073430();
 
 protected:
+	MxLong HandleTransitionEnd();
+
 	Act3State* m_state;                 // 0xf8
 	Act3Ammo m_pizzas[MAX_PIZZAS];      // 0xfc
 	Act3Ammo m_donuts[MAX_DONUTS];      // 0x217c
@@ -118,12 +121,15 @@ class Act3 : public LegoWorld {
 	Helicopter* m_copter;               // 0x420c
 	Act3Shark* m_shark;                 // 0x4210
 	MxFloat m_time;                     // 0x4214
-	undefined4 m_unk0x4218;             // 0x4218
+	undefined m_unk0x4218;              // 0x4218
+	undefined m_unk0x4219;              // 0x4219
+	undefined m_unk0x421a;              // 0x421a
+	undefined m_unk0x421b;              // 0x421b
 	undefined m_unk0x421c;              // 0x421c
 	undefined m_unk0x421d;              // 0x421d
 	undefined m_unk0x421e;              // 0x421e
 	Act3List m_unk0x4220;               // 0x4220
-	undefined4 m_unk0x4230[15];         // 0x4230
+	MxPresenter* m_helicopterDots[15];  // 0x4230
 	Act3Script::Script m_unk0x426c;     // 0x426c
 	LegoGameState::Area m_destLocation; // 0x4270
 };
diff --git a/LEGO1/lego/legoomni/include/act3brickster.h b/LEGO1/lego/legoomni/include/act3brickster.h
index 1e418abf..4e0c8240 100644
--- a/LEGO1/lego/legoomni/include/act3brickster.h
+++ b/LEGO1/lego/legoomni/include/act3brickster.h
@@ -29,6 +29,8 @@ class Act3Brickster : public Act3Actor {
 	void SetUnknown0x24(MxFloat p_unk0x24) { m_unk0x24 = p_unk0x24; }
 	void SetUnknown0x50(MxFloat p_unk0x50) { m_unk0x50 = p_unk0x50; }
 
+	MxResult FUN_100417c0();
+
 	// SYNTHETIC: LEGO1 0x10043250
 	// Act3Brickster::`scalar deleting destructor'
 
diff --git a/LEGO1/lego/legoomni/include/helicopter.h b/LEGO1/lego/legoomni/include/helicopter.h
index a7be42bc..1044dae2 100644
--- a/LEGO1/lego/legoomni/include/helicopter.h
+++ b/LEGO1/lego/legoomni/include/helicopter.h
@@ -5,6 +5,8 @@
 #include "legostate.h"
 #include "realtime/matrix.h"
 
+class Act3;
+
 // VTABLE: LEGO1 0x100d5418
 // SIZE 0x0c
 class HelicopterState : public LegoState {
@@ -78,6 +80,9 @@ class Helicopter : public IslePathActor {
 	// SYNTHETIC: LEGO1 0x10003210
 	// Helicopter::`scalar deleting destructor'
 
+	// m_state is accessed directly from Act3; confirmed by BETA10
+	friend class Act3;
+
 protected:
 	MxMatrix m_unk0x160;              // 0x160
 	MxMatrix m_unk0x1a8;              // 0x1a8
diff --git a/LEGO1/lego/legoomni/src/actors/act3brickster.cpp b/LEGO1/lego/legoomni/src/actors/act3brickster.cpp
index 395ffe04..6197d429 100644
--- a/LEGO1/lego/legoomni/src/actors/act3brickster.cpp
+++ b/LEGO1/lego/legoomni/src/actors/act3brickster.cpp
@@ -33,6 +33,14 @@ MxResult Act3Brickster::VTable0x94(LegoPathActor*, MxBool)
 	return SUCCESS;
 }
 
+// STUB: LEGO1 0x100417c0
+// STUB: BETA10 0x1001a407
+MxResult Act3Brickster::FUN_100417c0()
+{
+	// TODO
+	return SUCCESS;
+}
+
 // STUB: LEGO1 0x10042990
 void Act3Brickster::SwitchBoundary(LegoPathBoundary*& p_boundary, LegoUnknown100db7f4*& p_edge, float& p_unk0xe4)
 {
diff --git a/LEGO1/lego/legoomni/src/worlds/act3.cpp b/LEGO1/lego/legoomni/src/worlds/act3.cpp
index a7b568dc..c2c6f65a 100644
--- a/LEGO1/lego/legoomni/src/worlds/act3.cpp
+++ b/LEGO1/lego/legoomni/src/worlds/act3.cpp
@@ -16,12 +16,14 @@
 #include "legoutils.h"
 #include "legovideomanager.h"
 #include "misc.h"
+#include "mxactionnotificationparam.h"
 #include "mxbackgroundaudiomanager.h"
 #include "mxmisc.h"
 #include "mxnotificationmanager.h"
 #include "mxticklemanager.h"
 #include "mxtimer.h"
 #include "mxtransitionmanager.h"
+#include "scripts.h"
 
 DECOMP_SIZE_ASSERT(Act3, 0x4274)
 DECOMP_SIZE_ASSERT(Act3State, 0x0c)
@@ -32,6 +34,12 @@ DECOMP_SIZE_ASSERT(Act3List, 0x10)
 Act3Script::Script g_unk0x100d95e8[] =
 	{Act3Script::c_tlp053in_RunAnim, Act3Script::c_tlp064la_RunAnim, Act3Script::c_tlp068in_RunAnim};
 
+// STUB: LEGO1 0x100720d0
+void Act3List::FUN_100720d0(MxU32 p_objectId)
+{
+	// TODO
+}
+
 // FUNCTION: LEGO1 0x10072270
 // FUNCTION: BETA10 0x10015470
 Act3::Act3()
@@ -46,7 +54,7 @@ Act3::Act3()
 	m_time = -1;
 	m_unk0x421e = 0;
 
-	memset(m_unk0x4230, 0, sizeof(m_unk0x4230));
+	memset(m_helicopterDots, 0, sizeof(m_helicopterDots));
 
 	NavController()->ResetMaxLinearAccel(NavController()->GetMaxLinearAccel() * 30.0f);
 	NavController()->ResetMaxLinearDeccel(NavController()->GetMaxLinearDeccel() * 30.0f);
@@ -153,14 +161,130 @@ void Act3::Destroy(MxBool p_fromDestructor)
 	}
 }
 
-// STUB: LEGO1 0x10072de0
-// STUB: BETA10 0x10016322
+// FUNCTION: LEGO1 0x10072de0
+// FUNCTION: BETA10 0x10016322
 MxLong Act3::Notify(MxParam& p_param)
 {
-	// TODO
+	MxNotificationParam& param = (MxNotificationParam&) p_param;
+	LegoWorld::Notify(p_param);
+
+	if (m_worldStarted) {
+		switch (param.GetNotification()) {
+		case c_notificationEndAction: {
+			MxEndActionNotificationParam& param = (MxEndActionNotificationParam&) p_param;
+
+			if (param.GetAction() != NULL && param.GetAction()->GetAtomId() == *g_act3Script) {
+				if (param.GetAction()->GetObjectId() == Act3Script::c_HelicopterDashboard) {
+					MxDSAction action;
+					FUN_10015820(FALSE, LegoOmni::c_disableInput | LegoOmni::c_disable3d | LegoOmni::c_clearScreen);
+					SetAppCursor(e_cursorArrow);
+					VideoManager()->Get3DManager()->SetFrustrum(45.0f, 0.1f, 125.0f);
+
+					m_brickster->SetWorldSpeed(5.0f);
+					m_brickster->SetState(0);
+					assert(BackgroundAudioManager());
+
+					action.SetAtomId(*g_jukeboxScript);
+					action.SetObjectId(Act3Script::c_pzhitdn_PlayWav);
+
+					BackgroundAudioManager()->PlayMusic(action, 5, MxPresenter::e_repeating);
+					m_brickster->FUN_100417c0();
+
+					m_cop1->SetState(0);
+					m_cop1->SetWorldSpeed(2.0f);
+					m_cop1->VTable0xa8();
+
+					m_cop2->SetState(0);
+					m_cop2->SetWorldSpeed(2.0f);
+					m_cop2->VTable0xa8();
+
+					m_brickster->VTable0xa8();
+
+					m_unk0x4218 = 0;
+					m_unk0x4219 = 0;
+					m_unk0x421a = 0;
+					m_unk0x421b = 0;
+					m_unk0x421c = 0;
+					m_unk0x421d = 0;
+
+					MxS32 length;
+					LegoBuildingInfo* info = BuildingManager()->GetInfoArray(length);
+					m_unk0x421e = 0;
+
+					while (--length >= 0) {
+						if (info[length].m_unk0x11 < 0 && info[length].m_boundary != NULL &&
+							info[length].m_entity != NULL) {
+							m_unk0x421e++;
+						}
+					}
+
+					length = 0;
+					m_unk0x421e--;
+					char buf[80];
+
+					do {
+						sprintf(buf, "HelicopterDotOn%d_Bitmap", length + 1);
+						m_helicopterDots[length] = (MxPresenter*) Find("MxPresenter", buf);
+
+						if (m_unk0x421e > length) {
+							m_helicopterDots[length]->Enable(TRUE);
+						}
+						else {
+							m_helicopterDots[length]->Enable(FALSE);
+						}
+
+						length++;
+					} while (length < (MxS32) sizeOfArray(m_helicopterDots));
+				}
+				else {
+					m_unk0x4220.FUN_100720d0(param.GetAction()->GetObjectId());
+				}
+			}
+			break;
+		}
+		case c_notificationKeyPress:
+			if (m_state->m_unk0x08 == 1 && ((LegoEventNotificationParam&) p_param).GetKey() == ' ') {
+				AnimationManager()->FUN_10061010(FALSE);
+				return 1;
+			}
+			break;
+		case c_notificationButtonUp:
+		case c_notificationButtonDown:
+			if (m_state->m_unk0x08 == 1) {
+				return 1;
+			}
+			break;
+		case c_notificationEndAnim:
+			if (m_state->m_unk0x08 == 1) {
+				assert(m_copter && m_brickster && m_cop1 && m_cop2);
+				m_unk0x4220.FUN_100720d0(NULL);
+				m_state->m_unk0x08 = 0;
+				FUN_10015820(TRUE, LegoOmni::c_disableInput | LegoOmni::c_disable3d | LegoOmni::c_clearScreen);
+				m_copter->HandleClick();
+				m_copter->m_state->m_unk0x08 = 1;
+				m_copter->HandleEndAnim((LegoEndAnimNotificationParam&) param);
+			}
+			break;
+		case c_notificationTransitioned:
+			HandleTransitionEnd();
+			return 1;
+		}
+	}
+
 	return 0;
 }
 
+// FUNCTION: LEGO1 0x10073240
+MxLong Act3::HandleTransitionEnd()
+{
+	if (m_destLocation != LegoGameState::e_undefined) {
+		GameState()->SwitchArea(m_destLocation);
+		m_destLocation = LegoGameState::e_undefined;
+	}
+
+	return 1;
+}
+
 // FUNCTION: LEGO1 0x10073270
 void Act3::ReadyWorld()
 {