Euthanasia - Needle shots will allow the tears to burst at least twice.
Haemolacria - Tears look like Hameolacria. They can be fed and will burst into 8 tears that have Haemolacria's burst effect upon hitting obstacles or enemies.
A Lump of Coal - Tears continually grow in size without being fed other tears, but they will still only deal bonus damage based strictly on how far they travel. Burst tears will still grow in size and damage as they travel.
Monstro's Lung - The tears clump together soon after firing, causing potentially up to 20x tear damage on a direct hit on an enemy.
Lead Pencil - The tears clump together soon after firing, causing potentially up to 20x tear damage on a direct hit on an enemy.
Pulse Worm - The fluctuating hitboxes of the tears causes them to clump together at a faster rate.
Sinus Infection - Boogers will always burst into more boogers, though some of the boogers may incorrectly appear to be normal tears. When a booger sticks to an enemy, it will burst into 8 boogers which have a high chance of sticking again to the same enemy.
Tractor Beam - All split tears will travel along the beam.
Split tears are no longer confined to the beam.