diff --git a/rpcs3/Emu/Cell/Modules/cellCrossController.cpp b/rpcs3/Emu/Cell/Modules/cellCrossController.cpp
index 273c8dec76..58ecd8ad31 100644
--- a/rpcs3/Emu/Cell/Modules/cellCrossController.cpp
+++ b/rpcs3/Emu/Cell/Modules/cellCrossController.cpp
@@ -1,7 +1,11 @@
 #include "stdafx.h"
+#include "Emu/System.h"
 #include "Emu/Cell/PPUModule.h"
+#include "Emu/IdManager.h"
+#include "Emu/localized_string.h"
 #include "cellSysutil.h"
 #include "cellCrossController.h"
+#include "cellMsgDialog.h"
 
 
 LOG_CHANNEL(cellCrossController);
@@ -33,15 +37,117 @@ void fmt_class_string<CellCrossControllerError>::format(std::string& out, u64 ar
 	});
 }
 
+void finish_callback(ppu_thread& ppu, s32 button_type, vm::ptr<void> userdata); // Forward declaration
+
+struct cross_controller
+{
+	atomic_t<s32> status{0};
+	std::unique_ptr<named_thread<std::function<void()>>> connection_thread;
+	vm::ptr<CellCrossControllerCallback> callback = vm::null;
+	vm::ptr<void> userdata = vm::null;
+
+	void on_connection_established(s32 status)
+	{
+		ensure(!!callback);
+
+		close_msg_dialog();
+
+		sysutil_register_cb([=](ppu_thread& ppu) -> s32
+		{
+			callback(ppu, CELL_CROSS_CONTROLLER_STATUS_FINALIZED, status, vm::null, userdata);
+			return CELL_OK;
+		});
+	}
+
+	void run_thread(vm::cptr<CellCrossControllerPackageInfo> pPkgInfo)
+	{
+		ensure(!!pPkgInfo);
+		ensure(!!callback);
+
+		const std::string msg = fmt::format("%s\n\n%s",
+			get_localized_string(localized_string_id::CELL_CROSS_CONTROLLER_MSG, pPkgInfo->pTitle.get_ptr()),
+			get_localized_string(localized_string_id::CELL_CROSS_CONTROLLER_FW_MSG));
+
+		vm::bptr<CellMsgDialogCallback> msg_dialog_callback = vm::null;
+		msg_dialog_callback.set(g_fxo->get<ppu_function_manager>().func_addr(FIND_FUNC(finish_callback)));
+
+		// TODO: Show icons from comboplay_plugin.rco in dialog. Maybe use a new dialog or add an optional icon to this one.
+		error_code res = open_msg_dialog(false, CELL_MSGDIALOG_TYPE_DISABLE_CANCEL_OFF, vm::make_str(msg), msg_dialog_callback, userdata);
+
+		sysutil_register_cb([=](ppu_thread& ppu) -> s32
+		{
+			callback(ppu, CELL_CROSS_CONTROLLER_STATUS_INITIALIZED, res == CELL_OK ? CELL_OK : CELL_CROSS_CONTROLLER_ERROR_INTERNAL, vm::null, userdata);
+			return CELL_OK;
+		});
+
+		status = CELL_CROSS_CONTROLLER_STATUS_INITIALIZED;
+
+		connection_thread = std::make_unique<named_thread<std::function<void()>>>(fmt::format("Cross-Controller Thread"), [this]()
+		{
+			while (thread_ctrl::state() != thread_state::aborting)
+			{
+				if (Emu.IsPaused())
+				{
+					thread_ctrl::wait_for(10'000);
+					continue;
+				}
+
+				// TODO: establish connection to PS Vita
+				if (false)
+				{
+					on_connection_established(CELL_OK);
+				}
+
+				thread_ctrl::wait_for(1000);
+			}
+
+			status = CELL_CROSS_CONTROLLER_STATUS_FINALIZED;
+		});
+	}
+
+	void stop_thread()
+	{
+		if (connection_thread)
+		{
+			auto& thread = *connection_thread;
+			thread = thread_state::aborting;
+			thread();
+			connection_thread.reset();
+		}
+	};
+};
+
+void finish_callback(ppu_thread& ppu, s32 button_type, vm::ptr<void> userdata)
+{
+	cross_controller& cc = g_fxo->get<cross_controller>();
+
+	// This function should only be called when the user canceled the dialog
+	ensure(cc.callback && button_type == CELL_MSGDIALOG_BUTTON_ESCAPE);
+
+	cc.callback(ppu, CELL_CROSS_CONTROLLER_STATUS_FINALIZED, CELL_CROSS_CONTROLLER_ERROR_CANCEL, vm::null, userdata);
+	cc.stop_thread();
+}
+
 error_code cellCrossControllerInitialize(vm::cptr<CellCrossControllerParam> pParam, vm::cptr<CellCrossControllerPackageInfo> pPkgInfo, vm::ptr<CellCrossControllerCallback> cb, vm::ptr<void> userdata) // LittleBigPlanet 2 and 3
 {
 	cellCrossController.todo("cellCrossControllerInitialize(pParam=*0x%x, pPkgInfo=*0x%x, cb=*0x%x, userdata=*0x%x)", pParam, pPkgInfo, cb, userdata);
 
-	// TODO
-	//if (something)
-	//{
-	//	return CELL_CROSS_CONTROLLER_ERROR_INVALID_STATE;
-	//}
+	if (pParam)
+	{
+		cellCrossController.notice("cellCrossControllerInitialize: pParam: pPackageFileName=%s, pSignatureFileName=%s, pIconFileName=%s", pParam->pPackageFileName, pParam->pSignatureFileName, pParam->pIconFileName);
+	}
+
+	if (pPkgInfo)
+	{
+		cellCrossController.notice("cellCrossControllerInitialize: pPkgInfo: pTitle=%s, pTitleId=%s, pAppVer=%s", pPkgInfo->pTitle, pPkgInfo->pTitleId, pPkgInfo->pAppVer);
+	}
+
+	cross_controller& cc = g_fxo->get<cross_controller>();
+
+	if (cc.status == CELL_CROSS_CONTROLLER_STATUS_INITIALIZED) // TODO: confirm this logic
+	{
+		return CELL_CROSS_CONTROLLER_ERROR_INVALID_STATE;
+	}
 
 	if (!pParam || !pPkgInfo)
 	{
@@ -73,13 +179,9 @@ error_code cellCrossControllerInitialize(vm::cptr<CellCrossControllerParam> pPar
 		return CELL_CROSS_CONTROLLER_ERROR_INVALID_VALUE;
 	}
 
-	sysutil_register_cb([=](ppu_thread& ppu) -> s32
-	{
-		cb(ppu, CELL_CROSS_CONTROLLER_STATUS_INITIALIZED, CELL_OK, vm::null, userdata);
-		cb(ppu, CELL_CROSS_CONTROLLER_STATUS_FINALIZED, CELL_OK, vm::null, userdata);
-
-		return CELL_OK;
-	});
+	cc.callback = cb;
+	cc.userdata = userdata;
+	cc.run_thread(pPkgInfo);
 
 	return CELL_OK;
 }
@@ -88,4 +190,7 @@ error_code cellCrossControllerInitialize(vm::cptr<CellCrossControllerParam> pPar
 DECLARE(ppu_module_manager::cellCrossController)("cellCrossController", []()
 {
 	REG_FUNC(cellCrossController, cellCrossControllerInitialize);
+
+	// Helper Function
+	REG_HIDDEN_FUNC(finish_callback);
 });
diff --git a/rpcs3/Emu/Cell/Modules/cellMsgDialog.cpp b/rpcs3/Emu/Cell/Modules/cellMsgDialog.cpp
index 30954f189e..a06f4fc75d 100644
--- a/rpcs3/Emu/Cell/Modules/cellMsgDialog.cpp
+++ b/rpcs3/Emu/Cell/Modules/cellMsgDialog.cpp
@@ -144,7 +144,7 @@ error_code cellMsgDialogOpen2(u32 type, vm::cptr<char> msgString, vm::ptr<CellMs
 // wrapper to call for other hle dialogs
 error_code open_msg_dialog(bool is_blocking, u32 type, vm::cptr<char> msgString, vm::ptr<CellMsgDialogCallback> callback, vm::ptr<void> userData, vm::ptr<void> extParam)
 {
-	cellSysutil.warning("open_msg_dialog(is_blocking=%d, type=0x%x, msgString=%s, callback=*0x%x, userData=*0x%x, extParam=*0x%x)", is_blocking, type, msgString, callback, userData, extParam);
+	cellSysutil.notice("open_msg_dialog(is_blocking=%d, type=0x%x, msgString=%s, callback=*0x%x, userData=*0x%x, extParam=*0x%x)", is_blocking, type, msgString, callback, userData, extParam);
 
 	const MsgDialogType _type{ type };
 
@@ -263,6 +263,31 @@ error_code open_msg_dialog(bool is_blocking, u32 type, vm::cptr<char> msgString,
 	return CELL_OK;
 }
 
+void close_msg_dialog()
+{
+	cellSysutil.notice("close_msg_dialog()");
+
+	if (auto manager = g_fxo->try_get<rsx::overlays::display_manager>())
+	{
+		if (auto dlg = manager->get<rsx::overlays::message_dialog>())
+		{
+			g_fxo->get<msg_dlg_thread>().wait_until = 0;
+			dlg->close(false, true); // this doesn't call on_close
+			sysutil_send_system_cmd(CELL_SYSUTIL_DRAWING_END, 0);
+			return;
+		}
+	}
+
+	if (const auto dlg = g_fxo->get<msg_info>().get())
+	{
+		dlg->state = MsgDialogState::Close;
+		g_fxo->get<msg_dlg_thread>().wait_until = 0;
+		g_fxo->get<msg_info>().remove(); // this shouldn't call on_close
+		input::SetIntercepted(false);    // so we need to reenable the pads here
+		sysutil_send_system_cmd(CELL_SYSUTIL_DRAWING_END, 0);
+	}
+}
+
 void exit_game(s32/* buttonType*/, vm::ptr<void>/* userData*/)
 {
 	sysutil_send_system_cmd(CELL_SYSUTIL_REQUEST_EXITGAME, 0);
@@ -270,7 +295,7 @@ void exit_game(s32/* buttonType*/, vm::ptr<void>/* userData*/)
 
 error_code open_exit_dialog(const std::string& message, bool is_exit_requested)
 {
-	cellSysutil.warning("open_exit_dialog(message=%s, is_exit_requested=%d)", message, is_exit_requested);
+	cellSysutil.notice("open_exit_dialog(message=%s, is_exit_requested=%d)", message, is_exit_requested);
 
 	vm::bptr<CellMsgDialogCallback> callback = vm::null;
 
@@ -342,11 +367,6 @@ error_code cellMsgDialogOpen2(u32 type, vm::cptr<char> msgString, vm::ptr<CellMs
 	default: return CELL_MSGDIALOG_ERROR_PARAM;
 	}
 
-	if (_type.se_mute_on)
-	{
-		// TODO
-	}
-
 	if (_type.se_normal)
 	{
 		cellSysutil.warning("%s", msgString);
diff --git a/rpcs3/Emu/Cell/Modules/cellMsgDialog.h b/rpcs3/Emu/Cell/Modules/cellMsgDialog.h
index af787431af..208702cc05 100644
--- a/rpcs3/Emu/Cell/Modules/cellMsgDialog.h
+++ b/rpcs3/Emu/Cell/Modules/cellMsgDialog.h
@@ -91,6 +91,7 @@ enum class MsgDialogState
 
 extern atomic_t<s32> g_last_user_response;
 
+void close_msg_dialog();
 error_code open_msg_dialog(bool is_blocking, u32 type, vm::cptr<char> msgString, vm::ptr<CellMsgDialogCallback> callback = vm::null, vm::ptr<void> userData = vm::null, vm::ptr<void> extParam = vm::null);
 error_code open_exit_dialog(const std::string& message, bool is_exit_requested);
 
diff --git a/rpcs3/Emu/Cell/timers.hpp b/rpcs3/Emu/Cell/timers.hpp
index eb0ab767d7..345bb14ceb 100644
--- a/rpcs3/Emu/Cell/timers.hpp
+++ b/rpcs3/Emu/Cell/timers.hpp
@@ -4,5 +4,9 @@
 
 u64 convert_to_timebased_time(u64 time);
 u64 get_timebased_time();
+
+// Returns some relative time in microseconds, don't change this fact
 u64 get_system_time();
+
+// As get_system_time but obeys Clocks scaling setting. Microseconds.
 u64 get_guest_system_time(u64 time = umax);
diff --git a/rpcs3/Emu/localized_string_id.h b/rpcs3/Emu/localized_string_id.h
index b523705905..6542f1542d 100644
--- a/rpcs3/Emu/localized_string_id.h
+++ b/rpcs3/Emu/localized_string_id.h
@@ -129,6 +129,9 @@ enum class localized_string_id
 	CELL_SAVEDATA_LOAD,
 	CELL_SAVEDATA_OVERWRITE,
 
+	CELL_CROSS_CONTROLLER_MSG,
+	CELL_CROSS_CONTROLLER_FW_MSG,
+
 	RPCN_NO_ERROR,
 	RPCN_ERROR_INVALID_INPUT,
 	RPCN_ERROR_WOLFSSL,
diff --git a/rpcs3/rpcs3qt/localized_emu.h b/rpcs3/rpcs3qt/localized_emu.h
index 03aa2fa767..d66c4880c0 100644
--- a/rpcs3/rpcs3qt/localized_emu.h
+++ b/rpcs3/rpcs3qt/localized_emu.h
@@ -151,6 +151,8 @@ private:
 		case localized_string_id::CELL_SAVEDATA_DELETE: return tr("Delete this data?\n\n%0", "Savedata entry info").arg(std::forward<Args>(args)...);
 		case localized_string_id::CELL_SAVEDATA_LOAD: return tr("Load this data?\n\n%0", "Savedata entry info").arg(std::forward<Args>(args)...);
 		case localized_string_id::CELL_SAVEDATA_OVERWRITE: return tr("Do you want to overwrite the saved data?\n\n%0", "Savedata entry info").arg(std::forward<Args>(args)...);
+		case localized_string_id::CELL_CROSS_CONTROLLER_MSG: return tr("Start [%0] on the PS Vita system.\nIf you have not installed [%0], go to [Remote Play] on the PS Vita system and start [Cross-Controller] from the LiveArea™ screen.", "Cross-Controller message").arg(std::forward<Args>(args)...);
+		case localized_string_id::CELL_CROSS_CONTROLLER_FW_MSG: return tr("If your system software version on the PS Vita system is earlier than 1.80, you must update the system software to the latest version.", "Cross-Controller firmware message");
 		case localized_string_id::RPCN_NO_ERROR: return tr("RPCN: No Error");
 		case localized_string_id::RPCN_ERROR_INVALID_INPUT: return tr("RPCN: Invalid Input (Wrong Host/Port)");
 		case localized_string_id::RPCN_ERROR_WOLFSSL: return tr("RPCN Connection Error: WolfSSL Error");