diff --git a/LEGO1/lego/legoomni/include/registrationbook.h b/LEGO1/lego/legoomni/include/registrationbook.h
index cc4f8fd4..a28ffe5e 100644
--- a/LEGO1/lego/legoomni/include/registrationbook.h
+++ b/LEGO1/lego/legoomni/include/registrationbook.h
@@ -4,11 +4,30 @@
 #include "legoworld.h"
 
 class InfocenterState;
+class MxEndActionNotificationParam;
+class LegoControlManagerEvent;
 
 // VTABLE: LEGO1 0x100d9928
 // SIZE 0x2d0
 class RegistrationBook : public LegoWorld {
 public:
+	enum RegistrationBookScript {
+		c_alphabetCtl = 5,
+		c_aBitmap = 6,
+		c_backgroundBitmap = 36,
+		c_checkHiLiteBitmap = 37,
+		c_check0ctl = 68,
+		c_check1ctl = 71,
+		c_check2ctl = 74,
+		c_check3ctl = 77,
+		c_check4ctl = 80,
+		c_check5ctl = 83,
+		c_check6ctl = 86,
+		c_check7ctl = 89,
+		c_check8ctl = 92,
+		c_check9ctl = 95,
+	};
+
 	RegistrationBook();
 	~RegistrationBook() override; // vtable+0x00
 
@@ -56,6 +75,11 @@ class RegistrationBook : public LegoWorld {
 	undefined4 m_unk0x2c4;              // 0x2c4
 	undefined4 m_unk0x2c8;              // 0x2c8
 	undefined4 m_unk0x2cc;              // 0x2cc
+
+	MxLong HandleEndAction(MxEndActionNotificationParam& p_param);
+	MxLong HandleKeyPress(MxS8 p_key);
+	MxLong HandleClick(LegoControlManagerEvent& p_param);
+	MxLong HandleNotification19(MxParam& p_param);
 };
 
 #endif // REGISTRATIONBOOK_H
diff --git a/LEGO1/lego/legoomni/src/infocenter/registrationbook.cpp b/LEGO1/lego/legoomni/src/infocenter/registrationbook.cpp
index 0e0125ce..d8ae7003 100644
--- a/LEGO1/lego/legoomni/src/infocenter/registrationbook.cpp
+++ b/LEGO1/lego/legoomni/src/infocenter/registrationbook.cpp
@@ -5,7 +5,9 @@
 #include "legogamestate.h"
 #include "legoinputmanager.h"
 #include "legoomni.h"
+#include "mxactionnotificationparam.h"
 #include "mxnotificationmanager.h"
+#include "mxtimer.h"
 
 DECOMP_SIZE_ASSERT(RegistrationBook, 0x2d0)
 
@@ -56,11 +58,54 @@ MxResult RegistrationBook::Create(MxDSAction& p_dsAction)
 	return result;
 }
 
-// STUB: LEGO1 0x100770e0
+// FUNCTION: LEGO1 0x100770e0
 MxLong RegistrationBook::Notify(MxParam& p_param)
 {
-	// TODO
+	MxLong result = 0;
+	LegoWorld::Notify(p_param);
 
+	if (m_worldStarted) {
+		switch (((MxNotificationParam&) p_param).GetType()) {
+		case c_notificationEndAction:
+			result = HandleEndAction((MxEndActionNotificationParam&) p_param);
+			break;
+		case c_notificationKeyPress:
+			m_unk0xf8 = Timer()->GetTime();
+			result = HandleKeyPress(((LegoEventNotificationParam&) p_param).GetKey());
+			break;
+		case c_notificationButtonDown:
+			m_unk0xf8 = Timer()->GetTime();
+			break;
+		case c_notificationClick:
+			result = HandleClick((LegoControlManagerEvent&) p_param);
+			break;
+		case c_notificationType19:
+			result = HandleNotification19(p_param);
+			break;
+		case c_notificationTransitioned:
+			GameState()->SwitchArea(LegoGameState::e_infomain);
+			break;
+		}
+	}
+
+	return result;
+}
+
+// STUB: LEGO1 0x10077210
+MxLong RegistrationBook::HandleEndAction(MxEndActionNotificationParam& p_param)
+{
+	return 0;
+}
+
+// STUB: LEGO1 0x100772d0
+MxLong RegistrationBook::HandleKeyPress(MxS8 p_key)
+{
+	return 0;
+}
+
+// STUB: LEGO1 0x100774a0
+MxLong RegistrationBook::HandleClick(LegoControlManagerEvent& p_param)
+{
 	return 0;
 }
 
@@ -73,7 +118,13 @@ void RegistrationBook::ReadyWorld()
 // STUB: LEGO1 0x10077fd0
 MxResult RegistrationBook::Tickle()
 {
-	// TODO
+	if (!m_worldStarted) {
+		LegoWorld::Tickle();
+	}
+	else {
+		// TODO
+	}
+
 	return SUCCESS;
 }
 
@@ -93,6 +144,12 @@ void RegistrationBook::Enable(MxBool p_enable)
 	}
 }
 
+// STUB: LEGO1 0x100781d0
+MxLong RegistrationBook::HandleNotification19(MxParam& p_param)
+{
+	return 0;
+}
+
 // FUNCTION: LEGO1 0x100783e0
 MxBool RegistrationBook::VTable0x64()
 {