Dying while turning to slime (but not dying BY turning to slime) leaves behind a large glob of green slime instead of a corpse in your bones file.

When you are sufficiently far along in the process of turning to slime (no more than a few turns away from converting completely), barehanded and barefooted attacks you make will be treated as sliming attacks and will turn enemies to slime as if you are already a green slime.

Because green slime is so flammable, there should be some way to use globs of it as lamp fuel.

Handling a cursed glob of green slime (picking it up, throwing it, etc) makes it start to slime you, using itself up in the process.

Green slimes have an engulfing attack that guarantees to start the sliming process (assuming the player isn’t unchanging, on fire, etc).

You can somehow weaponize globs of green slime to forcibly transform other monsters into slime. Possibly this could be as simple as throwing or flinging the globs at them, perhaps subject to a monster magic resistance check for the transformation to work.