diff --git a/LEGO1/lego/legoomni/include/act2actor.h b/LEGO1/lego/legoomni/include/act2actor.h
index 7ae28781..27a5fe22 100644
--- a/LEGO1/lego/legoomni/include/act2actor.h
+++ b/LEGO1/lego/legoomni/include/act2actor.h
@@ -10,19 +10,34 @@ class Act2Actor : public LegoAnimActor {
 public:
 	Act2Actor();
 
-	void SetROI(LegoROI* p_roi, MxBool p_bool1, MxBool p_bool2) override; // vtable+0x24
-	void SetWorldSpeed(MxFloat p_worldSpeed) override;                    // vtable+0x30
-	MxS32 VTable0x68(Vector3&, Vector3&, Vector3&) override;              // vtable+0x68
-	void VTable0x70(float p_und) override;                                // vtable+0x70
-	MxResult VTable0x94(LegoPathActor*, MxBool) override;                 // vtable+0x94
-	MxResult VTable0x9c() override;                                       // vtable+0x9c
-	MxS32 VTable0xa0() override;                                          // vtable+0xa0
+	void SetROI(LegoROI* p_roi, MxBool p_bool1, MxBool p_bool2) override;   // vtable+0x24
+	void SetWorldSpeed(MxFloat p_worldSpeed) override;                      // vtable+0x30
+	MxS32 VTable0x68(Vector3& p_v1, Vector3& p_v2, Vector3& p_v3) override; // vtable+0x68
+	void VTable0x70(float p_und) override;                                  // vtable+0x70
+	MxResult VTable0x94(LegoPathActor*, MxBool) override;                   // vtable+0x94
+	MxResult VTable0x9c() override;                                         // vtable+0x9c
+	MxS32 VTable0xa0() override;                                            // vtable+0xa0
 
 	// SYNTHETIC: LEGO1 0x1001a0a0
 	// Act2Actor::`scalar deleting destructor'
 
 private:
-	undefined m_unk0x1c[0x34]; // 0x1c
+	undefined m_unk0x1c;  // 0x1c
+	undefined m_unk0x1d;  // 0x1d
+	undefined m_unk0x1e;  // 0x1e
+	MxBool m_unk0x1f;     // 0x1f
+	undefined4 m_unk0x20; // 0x20
+	undefined4 m_unk0x24; // 0x24
+	undefined4 m_unk0x28; // 0x28
+	undefined4 m_unk0x2c; // 0x2c
+	undefined4 m_unk0x30; // 0x30
+	undefined4 m_unk0x34; // 0x34
+	undefined4 m_unk0x38; // 0x38
+	undefined4 m_unk0x3c; // 0x3c
+	undefined m_unk0x40;  // 0x40
+	undefined4 m_unk0x44; // 0x44
+	undefined m_unk0x48;  // 0x48
+	undefined4 m_unk0x4c; // 0x4c
 };
 
 #endif // ACT2ACTOR_H
diff --git a/LEGO1/lego/legoomni/src/actors/act2actor.cpp b/LEGO1/lego/legoomni/src/actors/act2actor.cpp
index bc100885..c978c3ed 100644
--- a/LEGO1/lego/legoomni/src/actors/act2actor.cpp
+++ b/LEGO1/lego/legoomni/src/actors/act2actor.cpp
@@ -1,23 +1,49 @@
 #include "act2actor.h"
 
+#include "legocachesoundmanager.h"
+#include "legosoundmanager.h"
+#include "misc.h"
+#include "roi/legoroi.h"
+
 DECOMP_SIZE_ASSERT(Act2Actor, 0x1a8)
 
 // STUB: LEGO1 0x100187e0
 Act2Actor::Act2Actor()
 {
-	// TODO
+	m_unk0x1c = 0;
+	m_unk0x1d = 0;
+	m_unk0x1f = FALSE;
+	m_unk0x24 = 0;
+	m_unk0x20 = 0;
+	m_unk0x1e = 0;
+	m_unk0x28 = 4;
+	m_unk0x2c = 0;
+	m_unk0x30 = 0;
+	m_unk0x34 = 0;
+	m_unk0x44 = 0;
+	m_unk0x40 = 1;
+	m_unk0x48 = 0;
+	m_unk0x4c = 0;
+	m_unk0x38 = 0;
+	m_unk0x3c = 0;
 }
 
-// STUB: LEGO1 0x10018940
+// FUNCTION: LEGO1 0x10018940
 void Act2Actor::SetROI(LegoROI* p_roi, MxBool p_bool1, MxBool p_bool2)
 {
-	// TODO
+	LegoAnimActor::SetROI(p_roi, p_bool1, p_bool2);
+	m_roi->SetVisibility(FALSE);
 }
 
-// STUB: LEGO1 0x100189f0
+// FUNCTION: LEGO1 0x100189f0
 MxResult Act2Actor::VTable0x94(LegoPathActor*, MxBool)
 {
-	// TODO
+	if (m_unk0x1f == FALSE) {
+		m_unk0x1f = TRUE;
+		m_unk0x20 = 0;
+	}
+
+	SoundManager()->GetCacheSoundManager()->Play("hitactor", NULL, FALSE);
 	return SUCCESS;
 }
 
@@ -34,10 +60,11 @@ void Act2Actor::VTable0x70(float p_und)
 	// TODO
 }
 
-// STUB: LEGO1 0x10019280
+// FUNCTION: LEGO1 0x10019280
 void Act2Actor::SetWorldSpeed(MxFloat p_worldSpeed)
 {
-	// TODO
+	LegoAnimActor::SetWorldSpeed(p_worldSpeed);
+	m_unk0x44 = 0;
 }
 
 // STUB: LEGO1 0x100195a0
@@ -47,9 +74,12 @@ MxS32 Act2Actor::VTable0xa0()
 	return 0;
 }
 
-// STUB: LEGO1 0x1001a180
-MxS32 Act2Actor::VTable0x68(Vector3&, Vector3&, Vector3&)
+// FUNCTION: LEGO1 0x1001a180
+MxS32 Act2Actor::VTable0x68(Vector3& p_v1, Vector3& p_v2, Vector3& p_v3)
 {
-	// TODO
-	return 0;
+	if (m_unk0x1f) {
+		return 0;
+	}
+
+	return LegoAnimActor::VTable0x68(p_v1, p_v2, p_v3);
 }