diff --git a/source/enemy/nshell.cpp b/source/enemy/nshell.cpp
new file mode 100644
index 000000000..bd5b9b4ab
--- /dev/null
+++ b/source/enemy/nshell.cpp
@@ -0,0 +1,74 @@
+/*=========================================================================
+
+	nshell.h
+
+	Author:		CRB
+	Created: 
+	Project:	Spongebob
+	Purpose: 
+
+	Copyright (c) 2001 Climax Development Ltd
+
+===========================================================================*/
+
+#ifndef __ENEMY_NSHELL_H__
+#include "enemy\nshell.h"
+#endif
+
+#ifndef __SPR_SPRITES_H__
+#include <sprites.h>
+#endif
+
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+void CNpcShellEnemy::render()
+{
+	SprFrame = NULL;
+
+	if ( m_isActive )
+	{
+		CEnemyThing::render();
+
+		if (canRender())
+		{
+			DVECTOR &renderPos=getRenderPos();
+
+			SprFrame = m_spriteBank->printRotatedScaledSprite( FRM_SHELL_STATIC0000,renderPos.vx,renderPos.vy,4096,4096,m_drawRotation,10);
+
+			// get xmax, xmin, ymax, ymin
+
+			s32 XMax;
+			s32 XMin;
+
+			s32 YMax;
+			s32 YMin;
+
+			XMin=SprFrame->x0;
+			if (XMin>SprFrame->x1) XMin=SprFrame->x1;
+			if (XMin>SprFrame->x2) XMin=SprFrame->x2;
+			if (XMin>SprFrame->x3) XMin=SprFrame->x3;
+			XMax=SprFrame->x0;
+			if (XMax<SprFrame->x1) XMax=SprFrame->x1;
+			if (XMax<SprFrame->x2) XMax=SprFrame->x2;
+			if (XMax<SprFrame->x3) XMax=SprFrame->x3;
+			YMin=SprFrame->y0;
+			if (YMin>SprFrame->y1) YMin=SprFrame->y1;
+			if (YMin>SprFrame->y2) YMin=SprFrame->y2;
+			if (YMin>SprFrame->y3) YMin=SprFrame->y3;
+			YMax=SprFrame->y0;
+			if (YMax<SprFrame->y1) YMax=SprFrame->y1;
+			if (YMax<SprFrame->y2) YMax=SprFrame->y2;
+			if (YMax<SprFrame->y3) YMax=SprFrame->y3;
+
+			XMax -= renderPos.vx;
+			XMin -= renderPos.vx;
+			YMax -= renderPos.vy;
+			YMin -= renderPos.vy;
+
+			setCollisionSize( ( XMax - XMin ), ( YMax - YMin ) );
+			setCollisionCentreOffset( ( XMax + XMin ) >> 1, ( YMax + YMin ) >> 1 );
+		}
+	}
+}
+