diff --git a/source/platform/pbubtube.cpp b/source/platform/pbubtube.cpp
new file mode 100644
index 000000000..127dafce9
--- /dev/null
+++ b/source/platform/pbubtube.cpp
@@ -0,0 +1,202 @@
+/*=========================================================================
+
+	pbubtube.cpp
+
+	Author:		CRB
+	Created: 
+	Project:	Spongebob
+	Purpose: 
+
+	Copyright (c) 2001 Climax Development Ltd
+
+===========================================================================*/
+
+#ifndef __PLATFORM_PBUBTUBE_H__
+#include "platform\pbubtube.h"
+#endif
+
+#ifndef	__UTILS_HEADER__
+#include	"utils\utils.h"
+#endif
+
+#ifndef __GAME_GAME_H__
+#include	"game\game.h"
+#endif
+
+#ifndef __FRIEND_FRIEND_H__
+#include "friend\friend.h"
+#endif
+
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+void CNpcBubbleTubePlatform::postInit()
+{
+	CNpcPlatform::postInit();
+
+	m_isActivated = false;
+	m_returning = false;
+}
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+void CNpcBubbleTubePlatform::setWaypoints( sThingPlatform *ThisPlatform )
+{
+	int pointNum;
+
+	u16	*PntList=(u16*)MakePtr(ThisPlatform,sizeof(sThingPlatform));
+
+	u16 newXPos, newYPos;
+
+	newXPos = (u16) *PntList;
+	PntList++;
+	newYPos = (u16) *PntList;
+	PntList++;
+
+	DVECTOR startPos;
+	startPos.vx = ( newXPos << 4 ) + 8;
+	startPos.vy = ( newYPos << 4 ) + 16;
+
+	init( startPos );
+
+	newXPos = (u16) *PntList;
+	PntList++;
+	newYPos = (u16) *PntList;
+	PntList++;
+
+	m_maxExtension = ( ( newYPos << 4 ) + 16 ) - startPos.vy;
+}
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+void CNpcBubbleTubePlatform::processMovement( int _frames )
+{
+	if ( m_contact )
+	{
+		if ( !m_isActivated )
+		{
+			m_isActivated = true;
+			m_timer = GameState::getOneSecondInFrames();
+		}
+	}
+
+	if ( m_isActivated )
+	{
+		if ( m_timer <= 0 )
+		{
+			s32 extension;
+
+			if ( m_returning )
+			{
+				extension = -m_extension;
+			}
+			else
+			{
+				extension = m_maxExtension - m_extension;
+			}
+
+			s32 maxMove = m_speed * _frames;
+
+			if ( extension > maxMove )
+			{
+				extension = maxMove;
+			}
+			else if ( extension < -maxMove )
+			{
+				extension = -maxMove;
+			}
+
+			if ( extension )
+			{
+				m_extension += extension;
+			}
+			else
+			{
+				if ( m_returning )
+				{
+					m_isActivated = false;
+					m_returning = false;
+				}
+				else
+				{
+					m_timer = GameState::getOneSecondInFrames();
+					m_isActivated = false;
+					m_returning = true;
+				}
+			}
+		}
+
+		Pos.vy = m_base.vy + m_extension;
+	}
+}
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+void CNpcBubbleTubePlatform::processTimer( int _frames )
+{
+	if ( m_timer > 0 )
+	{
+		m_timer -= _frames;
+	}
+}
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+void CNpcBubbleTubePlatform::collidedWith( CThing *_thisThing )
+{
+	switch(_thisThing->getThingType())
+	{
+		case TYPE_PLAYER:
+		{
+			CPlayer *player;
+			DVECTOR	playerPos;
+			CRECT	collisionArea;
+
+			// Only interested in SBs feet colliding with the box (pkg)
+			player=(CPlayer*)_thisThing;
+			playerPos=player->getPos();
+			collisionArea=getCollisionArea();
+
+			s32 threshold = abs( collisionArea.y2 - collisionArea.y1 );
+
+			if ( threshold > 16 )
+			{
+				threshold = 16;
+			}
+
+			if( playerPos.vx >= collisionArea.x1 && playerPos.vx <= collisionArea.x2 )
+			{
+				if ( checkCollisionDelta( _thisThing, threshold, collisionArea ) )
+				{
+					player->setPlatform( this );
+
+					m_contact = true;
+				}
+				else
+				{
+					if( playerPos.vy >= collisionArea.y1 && playerPos.vy <= collisionArea.y2 )
+					{
+						int height = getHeightFromPlatformAtPosition( playerPos.vx, playerPos.vy );
+
+						if ( height >= -threshold && height < 1 )
+						{
+							player->setPlatform( this );
+
+							m_contact = true;
+						}
+					}
+				}
+			}
+
+			break;
+		}
+
+		case TYPE_NPC:
+		case TYPE_HAZARD:
+			break;
+
+		default:
+			ASSERT(0);
+			break;
+	}
+}
diff --git a/source/platform/pbubtube.h b/source/platform/pbubtube.h
new file mode 100644
index 000000000..24216133c
--- /dev/null
+++ b/source/platform/pbubtube.h
@@ -0,0 +1,36 @@
+/*=========================================================================
+
+	pbubtube.h
+
+	Author:		CRB
+	Created: 
+	Project:	Spongebob
+	Purpose: 
+
+	Copyright (c) 2001 Climax Development Ltd
+
+===========================================================================*/
+
+#ifndef __PLATFORM_PBUBTUBE_H__
+#define __PLATFORM_PBUBTUBE_H__
+
+#ifndef __PLATFORM_PLATFORM_H__
+#include "platform\platform.h"
+#endif
+
+class CNpcBubbleTubePlatform : public CNpcPlatform
+{
+public:
+	virtual void		postInit();
+	virtual void		setWaypoints( sThingPlatform *ThisPlatform );
+protected:
+	virtual void		collidedWith(CThing *_thisThing);
+	virtual void		processMovement( int _frames );
+	virtual void		processTimer( int _frames );
+
+	u8					m_isActivated;
+	u8					m_returning;
+	s32					m_maxExtension;
+};
+
+#endif
\ No newline at end of file