Bob's Rotten Head: Bob's Rotten Head can travel through walls and appear out of the opposite wall.
Does not travel through the wall; instead bounces off it like with Rubber Cement.
The Forgotten: The skeleton form's charge attack can loop through walls.
A Lump of Coal: Tears will continually gain damage when passing through walls.
Mom's Knife: Causes Mom's Knife to appear on the opposite wall if thrown through one. It then returns through the wall to Isaac.
Mom's Knife + Brimstone: The barrage of knives flies across the room until it hits the wall twice.
My Reflection: When shooting through a wall, tears speed up towards Isaac rather than returning through the original wall. With enough shot speed and range the tears can loop twice.
Tech X: Laser rings will go through walls, extra distance depending on shot speed.
Tech X + Incubus: Incubus's laser rings cannot go through walls. This applies to Lilith too.
Tech X + Incubus: Laser rings travel through walls and continue on the other side of the room.
Tractor Beam: Causes the tears to loop right back in front of Isaac after they go offscreen.
Interactions
Brimstone: Overrides Continuum, stat effects apply.
Compound Fracture: Tears will only split when hitting obstacles or enemies but not walls.
Tears will split on contact with walls. Only one split will occur on contact with walls and objects.
Dr. Fetus: Bombs cannot go through walls, but are spectral.
The Ludovico Technique: When the tear is moved offscreen, it loops back through the opposite wall.
The Parasite: Tears will only split when hitting obstacles or enemies but not walls.
Tears will split on contact with walls. Only one split will occur on contact with walls and objects.
Proptosis: Tears shrink while traveling through walls and often disappear before they can reappear on the other side.
Technology Zero: Tears will travel through walls; however, the electricity will not connect the tears while they are outside the room. Once tears have passed through walls, the electric arcs connect very erratically to other tears.
Tiny Planet: Tears that travel through walls will travel until they reach Isaac and start orbiting him again.
+2.25 range.
+3 range.
This item has a 1% chance to drop when defeating 
Mega Maw.
The Beast tears will not loop downward identical to a 
Crawl Space.
Azazel / 
Brimstone / 
Revelation / 
Tainted Azazel / 
Technology: The laser continues behind Isaac and back once again, potentially hitting enemies twice in one blast.
Bob's Rotten Head: Bob's Rotten Head can travel through walls and appear out of the opposite wall.
Rubber Cement.
The Forgotten: The skeleton form's charge attack can loop through walls.
A Lump of Coal: Tears will continually gain damage when passing through walls.
Mom's Knife: Causes Mom's Knife to appear on the opposite wall if thrown through one. It then returns through the wall to Isaac.
My Reflection: When shooting through a wall, tears speed up towards Isaac rather than returning through the original wall. With enough shot speed and range the tears can loop twice.
Tech X: Laser rings will go through walls, extra distance depending on shot speed.
Tractor Beam: Causes the tears to loop right back in front of Isaac after they go offscreen.
Compound Fracture: Tears will only split when hitting obstacles or enemies but not walls.
Dr. Fetus: Bombs cannot go through walls, but are spectral.
Epic Fetus / 
The Ludovico Technique: When the tear is moved offscreen, it loops back through the opposite wall.
The Parasite: Tears will only split when hitting obstacles or enemies but not walls.
Proptosis: Tears shrink while traveling through walls and often disappear before they can reappear on the other side.
Technology Zero: Tears will travel through walls; however, the electricity will not connect the tears while they are outside the room. Once tears have passed through walls, the electric arcs connect very erratically to other tears.
Tiny Planet: Tears that travel through walls will travel until they reach Isaac and start orbiting him again.
Concept drawn for Continuum.
Hush's fight.
The Binding of Isaac: Rebirth
