diff --git a/source/platform/ppendulm.cpp b/source/platform/ppendulm.cpp
new file mode 100644
index 000000000..d35004d77
--- /dev/null
+++ b/source/platform/ppendulm.cpp
@@ -0,0 +1,54 @@
+/*=========================================================================
+
+	ppendulm.cpp
+
+	Author:		CRB
+	Created: 
+	Project:	Spongebob
+	Purpose: 
+
+	Copyright (c) 2001 Climax Development Ltd
+
+===========================================================================*/
+
+#ifndef __PLATFORM_PPENDULM_H__
+#include "platform\ppendulm.h"
+#endif
+
+void CNpcPendulumPlatform::postInit()
+{
+	m_extendDir = EXTEND_LEFT;
+	m_extension = 0;
+	m_heading = 1024;
+	m_length = 200;
+}
+
+void CNpcPendulumPlatform::processMovement( int _frames )
+{
+	if ( m_extendDir == EXTEND_LEFT )
+	{
+		if ( m_extension > 512 )
+		{
+			m_extendDir = EXTEND_RIGHT;
+		}
+		else
+		{
+			m_extension += _frames << 3;
+		}
+	}
+	else
+	{
+		if ( m_extension < -512 )
+		{
+			m_extendDir = EXTEND_LEFT;
+		}
+		else
+		{
+			m_extension -= _frames << 3;
+		}
+	}
+
+	Pos.vx = m_base.vx + ( ( m_length * rcos( m_heading + m_extension ) ) >> 12 );
+	Pos.vy = m_base.vy + ( ( m_length * rsin( m_heading + m_extension ) ) >> 12 );
+}
+
diff --git a/source/platform/ppendulm.h b/source/platform/ppendulm.h
new file mode 100644
index 000000000..0ca43d31b
--- /dev/null
+++ b/source/platform/ppendulm.h
@@ -0,0 +1,31 @@
+/*=========================================================================
+
+	ppendulm.h
+
+	Author:		CRB
+	Created: 
+	Project:	Spongebob
+	Purpose: 
+
+	Copyright (c) 2001 Climax Development Ltd
+
+===========================================================================*/
+
+#ifndef __PLATFORM_PPENDULM_H__
+#define __PLATFORM_PPENDULM_H__
+
+#ifndef __PLATFORM_PLATFORM_H__
+#include "platform\platform.h"
+#endif
+
+class CNpcPendulumPlatform : public CNpcPlatform
+{
+public:
+	virtual void		postInit();
+protected:
+	virtual void		processMovement( int _frames );
+
+	s32					m_length;
+};
+
+#endif
\ No newline at end of file