diff --git a/source/friend/fgary.cpp b/source/friend/fgary.cpp
index a0ac17a11..9f66c70c0 100644
--- a/source/friend/fgary.cpp
+++ b/source/friend/fgary.cpp
@@ -45,6 +45,7 @@ void CNpcGaryFriend::postInit()
 	m_started = false;
 	m_fallDeath = false;
 	m_drawRotation = 0;
+	m_obstructed = false;
 
 	m_soundId = (int) NOT_PLAYING;
 }
@@ -216,7 +217,7 @@ void CNpcGaryFriend::think( int _frames )
 						m_soundId = (int) CSoundMediator::playSfx( CSoundMediator::SFX_GARY_DE_SNAIL, true );
 					}
 
-					if ( !conveyorOverride )
+					if ( !conveyorOverride && !m_obstructed )
 					{
 						Pos.vx += multiplier * 2 * _frames;
 					}
@@ -248,7 +249,7 @@ void CNpcGaryFriend::think( int _frames )
 							m_soundId = (int) CSoundMediator::playSfx( CSoundMediator::SFX_GARY_DE_SNAIL, true );
 						}
 
-						if ( !conveyorOverride )
+						if ( !conveyorOverride && !m_obstructed )
 						{
 							Pos.vx += multiplier * 2 * _frames;
 						}
@@ -261,6 +262,8 @@ void CNpcGaryFriend::think( int _frames )
 			}
 		}
 	}
+
+	m_obstructed = false;
 }
 
 ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
diff --git a/source/friend/fgary.h b/source/friend/fgary.h
index d6e22e54a..27472cc81 100644
--- a/source/friend/fgary.h
+++ b/source/friend/fgary.h
@@ -32,6 +32,7 @@ public:
 	void				startLeft();
 	void				startRight();
 	void				render();
+	void				setObstructed()											{m_obstructed = true;}
 
 protected:
 	DVECTOR				m_triggerPos;
@@ -40,6 +41,7 @@ protected:
 	s16					m_speed;
 	s16					m_drawRotation;
 	int					m_soundId;
+	u8					m_obstructed;
 };
 
 #endif
\ No newline at end of file
diff --git a/source/friend/friend.h b/source/friend/friend.h
index c9c894071..0067640ba 100644
--- a/source/friend/friend.h
+++ b/source/friend/friend.h
@@ -58,6 +58,7 @@ public:
 	void				setPlatform( CNpcPlatform *platform )					{m_platform = platform;}
 	void				clearPlatform()											{m_platform = NULL;}
 	virtual void		setupWaypoints( sThingActor *ThisActor );
+	virtual void		setObstructed()											{}
 
 	static CNpcFriend	*Create(sThingActor *ThisActor);
 	static NPC_FRIEND_UNIT_TYPE		getTypeFromMapEdit( u16 newType );
diff --git a/source/hazard/hazard.cpp b/source/hazard/hazard.cpp
index 02b225744..05f2136b0 100644
--- a/source/hazard/hazard.cpp
+++ b/source/hazard/hazard.cpp
@@ -542,6 +542,9 @@ void CNpcHazard::collidedWith( CThing *_thisThing )
 				break;
 			}
 
+			case TYPE_NPC:
+				break;
+
 			default:
 				ASSERT(0);
 				break;
diff --git a/source/hazard/hrweight.cpp b/source/hazard/hrweight.cpp
index 7c7e8746f..2305ebc39 100644
--- a/source/hazard/hrweight.cpp
+++ b/source/hazard/hrweight.cpp
@@ -27,6 +27,10 @@
 #include	"game\game.h"
 #endif
 
+#ifndef __FRIEND_FRIEND_H__
+#include "friend\friend.h"
+#endif
+
 
 ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 
@@ -216,3 +220,39 @@ void CNpcRisingWeightHazard::render()
 		}
 	}
 }
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+void CNpcRisingWeightHazard::collidedWith( CThing *_thisThing )
+{
+	if ( m_isActive )
+	{
+		switch(_thisThing->getThingType())
+		{
+			case TYPE_PLAYER:
+			{
+				CPlayer *player = (CPlayer *) _thisThing;
+
+				if ( !player->isRecoveringFromHit() )
+				{
+					player->takeDamage( DAMAGE__HIT_ENEMY );
+				}
+
+				break;
+			}
+
+			case TYPE_NPC:
+			{
+				CNpcFriend *npcFriend = (CNpcFriend *) _thisThing;
+
+				npcFriend->setObstructed();
+
+				break;
+			}
+
+			default:
+				ASSERT(0);
+				break;
+		}
+	}
+}
diff --git a/source/hazard/hrweight.h b/source/hazard/hrweight.h
index bfe67defa..b9f1fa99a 100644
--- a/source/hazard/hrweight.h
+++ b/source/hazard/hrweight.h
@@ -27,6 +27,7 @@ public:
 	void				setTriggered()											{m_triggered = true;}
 	CRECT const			*getThinkBBox()											{return( CThing::getThinkBBox() );}
 protected:
+	virtual void		collidedWith(CThing *_thisThing);
 	void				setWaypoints( sThingHazard *ThisHazard );
 	void				processMovement( int _frames );
 
diff --git a/source/thing/thing.cpp b/source/thing/thing.cpp
index 52eaccbc9..b802913da 100644
--- a/source/thing/thing.cpp
+++ b/source/thing/thing.cpp
@@ -750,6 +750,26 @@ DVECTOR	const	&CamPos=CLevel::getCameraPos();
 			thing1=thing1->m_nextCollisionThing;
 		}
 
+		// gary collision with hazards
+
+		thing2=s_CollisionLists[CThing::TYPE_NPC];
+		while(thing2)
+		{
+			if ( thing2->getThingSubType() == CNpcFriend::NPC_FRIEND_GARY )
+			{
+				thing1=s_CollisionLists[CThing::TYPE_HAZARD];
+				while(thing1)
+				{
+					if(thing1->checkCollisionAgainst(thing2, _frames))
+					{
+						thing1->collidedWith(thing2);
+					}
+					thing1=thing1->m_nextCollisionThing;
+				}
+			}
+			thing2=thing2->m_nextCollisionThing;
+		}
+
 		player->detectHazardousSurface();
 	}
 // Shut emm down, sh sh shut em down, we shutem down