diff --git a/source/platform/pfblock.cpp b/source/platform/pfblock.cpp
new file mode 100644
index 000000000..3014c6eed
--- /dev/null
+++ b/source/platform/pfblock.cpp
@@ -0,0 +1,102 @@
+/*=========================================================================
+
+	pfblock.h
+
+	Author:		CRB
+	Created: 
+	Project:	Spongebob
+	Purpose: 
+
+	Copyright (c) 2001 Climax Development Ltd
+
+===========================================================================*/
+
+#ifndef __PLATFORM_PFBLOCK_H__
+#include "platform\pfblock.h"
+#endif
+
+#ifndef __GAME_GAME_H__
+#include	"game\game.h"
+#endif
+
+#ifndef __VID_HEADER_
+#include "system\vid.h"
+#endif
+
+#ifndef	__UTILS_HEADER__
+#include	"utils\utils.h"
+#endif
+
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+void CNpcFallingBlockPlatform::postInit()
+{
+	CNpcPlatform::postInit();
+
+	m_isTriggered = false;
+	m_isFalling = false;
+}
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+void CNpcFallingBlockPlatform::processMovement( int _frames )
+{
+	if ( m_isTriggered )
+	{
+		if ( m_timer > 0 )
+		{
+			m_timer -= _frames;
+
+			if ( m_timer <= 0 )
+			{
+				Pos = m_base;
+				m_isFalling = true;
+			}
+			else
+			{
+				Pos.vx = m_base.vx + ( -3 + ( getRnd() % 7 ) );
+				Pos.vy = m_base.vy + ( -3 + ( getRnd() % 7 ) );
+
+				if ( m_soundId == NOT_PLAYING )
+				{
+					m_soundId = (int) CSoundMediator::playSfx( CSoundMediator::SFX_HAZARD__STALACTITE_RATTLE, true );
+				}
+			}
+		}
+		else
+		{
+			DVECTOR	offset = CLevel::getCameraPos();
+
+			s32 yPos = Pos.vy - offset.vy;
+
+			if ( yPos > VidGetScrH() )
+			{
+				setToShutdown();
+			}
+
+			s32 moveY = m_speed * _frames;
+
+			Pos.vy += moveY;
+		}
+	}
+	else if ( m_contact )
+	{
+		m_isTriggered = true;
+		m_timer = GameState::getOneSecondInFrames();
+	}
+}
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+int CNpcFallingBlockPlatform::checkCollisionAgainst(CThing *_thisThing, int _frames)
+{
+	if ( m_isFalling )
+	{
+		return( false );
+	}
+	else
+	{
+		return( CNpcPlatform::checkCollisionAgainst( _thisThing, _frames ) );
+	}
+}
diff --git a/source/platform/pfblock.h b/source/platform/pfblock.h
new file mode 100644
index 000000000..daf6d60ca
--- /dev/null
+++ b/source/platform/pfblock.h
@@ -0,0 +1,35 @@
+/*=========================================================================
+
+	pfblock.h
+
+	Author:		CRB
+	Created: 
+	Project:	Spongebob
+	Purpose: 
+
+	Copyright (c) 2001 Climax Development Ltd
+
+===========================================================================*/
+
+#ifndef __PLATFORM_PFBLOCK_H__
+#define __PLATFORM_PFBLOCK_H__
+
+#ifndef __PLATFORM_PLATFORM_H__
+#include "platform\platform.h"
+#endif
+
+class CNpcFallingBlockPlatform : public CNpcPlatform
+{
+public:
+	void				postInit();
+	CRECT const			*getThinkBBox()												{return( CThing::getThinkBBox() );}
+	int					checkCollisionAgainst(CThing *_thisThing, int _frames);
+protected:
+	void				processMovement( int _frames );
+
+	u8					m_isTriggered;
+	u8					m_isFalling;
+	s32					m_timer;
+};
+
+#endif
\ No newline at end of file