diff --git a/sonic3air-main/Oxygen/oxygenengine/source/oxygen/helper/HighResolutionTimer.cpp b/sonic3air-main/Oxygen/oxygenengine/source/oxygen/helper/HighResolutionTimer.cpp
new file mode 100644
index 00000000..1e44f932
--- /dev/null
+++ b/sonic3air-main/Oxygen/oxygenengine/source/oxygen/helper/HighResolutionTimer.cpp
@@ -0,0 +1,81 @@
+/*
+*	Part of the Oxygen Engine / Sonic 3 A.I.R. software distribution.
+*	Copyright (C) 2017-2024 by Eukaryot
+*
+*	Published under the GNU GPLv3 open source software license, see license.txt
+*	or https://www.gnu.org/licenses/gpl-3.0.en.html
+*/
+
+#include "oxygen/pch.h"
+#include "oxygen/helper/HighResolutionTimer.h"
+
+
+void HighResolutionTimer::reset()
+{
+	mRunning = false;
+}
+
+void HighResolutionTimer::start()
+{
+	mStart = std::chrono::high_resolution_clock::now();
+	mRunning = true;
+}
+
+double HighResolutionTimer::getSecondsSinceStart() const
+{
+	if (mRunning)
+	{
+		const Duration duration = (std::chrono::high_resolution_clock::now() - mStart);
+		return duration.count();
+	}
+	return 0.0;
+}
+
+
+void AccumulativeTimer::resetTiming()
+{
+	reset();
+	mAccumulatedTime = Duration::zero();
+}
+
+void AccumulativeTimer::resumeTiming()
+{
+	if (!mRunning)
+	{
+		start();
+	}
+}
+
+void AccumulativeTimer::pauseTiming()
+{
+	if (mRunning)
+	{
+		mAccumulatedTime += (std::chrono::high_resolution_clock::now() - mStart);
+		mRunning = false;
+	}
+}
+
+double AccumulativeTimer::getAccumulatedSeconds() const
+{
+	Duration totalDuration = mAccumulatedTime;
+	if (mRunning)
+	{
+		totalDuration += (std::chrono::high_resolution_clock::now() - mStart);
+	}
+	return totalDuration.count();
+}
+
+double AccumulativeTimer::getAccumulatedSecondsAndRestart()
+{
+	const TimePoint now = std::chrono::high_resolution_clock::now();
+	Duration totalDuration = mAccumulatedTime;
+	if (mRunning)
+	{
+		totalDuration += (now - mStart);
+	}
+
+	mStart = now;
+	mAccumulatedTime = Duration::zero();
+	mRunning = true;
+	return totalDuration.count();
+}
diff --git a/sonic3air-main/Oxygen/oxygenengine/source/oxygen/helper/HighResolutionTimer.h b/sonic3air-main/Oxygen/oxygenengine/source/oxygen/helper/HighResolutionTimer.h
new file mode 100644
index 00000000..983b87d1
--- /dev/null
+++ b/sonic3air-main/Oxygen/oxygenengine/source/oxygen/helper/HighResolutionTimer.h
@@ -0,0 +1,44 @@
+/*
+*	Part of the Oxygen Engine / Sonic 3 A.I.R. software distribution.
+*	Copyright (C) 2017-2024 by Eukaryot
+*
+*	Published under the GNU GPLv3 open source software license, see license.txt
+*	or https://www.gnu.org/licenses/gpl-3.0.en.html
+*/
+
+#pragma once
+
+#include <chrono>
+
+
+class HighResolutionTimer
+{
+public:
+	void reset();
+	void start();
+
+	inline bool isRunning() const  { return mRunning; }
+	double getSecondsSinceStart() const;
+
+protected:
+	typedef std::chrono::time_point<std::chrono::high_resolution_clock> TimePoint;
+	typedef std::chrono::duration<double> Duration;
+
+	TimePoint mStart;
+	bool mRunning = false;
+};
+
+
+class AccumulativeTimer : protected HighResolutionTimer
+{
+public:
+	void resetTiming();
+	void resumeTiming();
+	void pauseTiming();
+
+	double getAccumulatedSeconds() const;
+	double getAccumulatedSecondsAndRestart();
+
+private:
+	Duration mAccumulatedTime;
+};
diff --git a/sonic3air-main/Oxygen/oxygenengine/source/oxygen/helper/JsonHelper.cpp b/sonic3air-main/Oxygen/oxygenengine/source/oxygen/helper/JsonHelper.cpp
new file mode 100644
index 00000000..7acdf896
--- /dev/null
+++ b/sonic3air-main/Oxygen/oxygenengine/source/oxygen/helper/JsonHelper.cpp
@@ -0,0 +1,35 @@
+/*
+*	Part of the Oxygen Engine / Sonic 3 A.I.R. software distribution.
+*	Copyright (C) 2017-2024 by Eukaryot
+*
+*	Published under the GNU GPLv3 open source software license, see license.txt
+*	or https://www.gnu.org/licenses/gpl-3.0.en.html
+*/
+
+#include "oxygen/pch.h"
+#include "oxygen/helper/JsonHelper.h"
+
+
+Json::Value JsonHelper::loadFile(const std::wstring& filename)
+{
+	std::vector<uint8> content;
+	if (FTX::FileSystem->readFile(filename, content))
+	{
+		if (!content.empty())	// Silently ignore empty JSON files
+		{
+			std::string errors;
+			Json::Value result = loadFromMemory(content, &errors);
+			if (errors.empty())
+				return result;
+
+			RMX_ERROR("Error parsing JSON file '" << *WString(filename).toString() << "':\n" << errors, );
+		}
+	}
+	return Json::Value();
+}
+
+bool JsonHelper::saveFile(const std::wstring& filename, const Json::Value& value)
+{
+	const String output(value.toStyledString());
+	return FTX::FileSystem->saveFile(filename, *output, output.length());
+}
diff --git a/sonic3air-main/Oxygen/oxygenengine/source/oxygen/helper/JsonHelper.h b/sonic3air-main/Oxygen/oxygenengine/source/oxygen/helper/JsonHelper.h
new file mode 100644
index 00000000..c80d724f
--- /dev/null
+++ b/sonic3air-main/Oxygen/oxygenengine/source/oxygen/helper/JsonHelper.h
@@ -0,0 +1,22 @@
+/*
+*	Part of the Oxygen Engine / Sonic 3 A.I.R. software distribution.
+*	Copyright (C) 2017-2024 by Eukaryot
+*
+*	Published under the GNU GPLv3 open source software license, see license.txt
+*	or https://www.gnu.org/licenses/gpl-3.0.en.html
+*/
+
+#pragma once
+
+#include <rmxbase.h>
+
+
+class JsonHelper : public rmx::JsonHelper
+{
+public:
+	static Json::Value loadFile(const std::wstring& filename);
+	static bool saveFile(const std::wstring& filename, const Json::Value& value);
+
+public:
+	inline JsonHelper(const Json::Value& json) : rmx::JsonHelper(json) {}
+};