Gelatinous ice cubes, which work mostly like gelatinous cubes but also have a cold attack.

When you first open an ice box that generated cursed, it may spawn a gelatinous cube or a group of P monsters.

Make gelatinous cubes and quivering blobs amorphous, allowing them to pass through terrain like iron bars (however, gelatinous cubes should probably be blocked from squeezing underneath doors).

A monster flag that designates that its inventory is actually the contents of its stomach and is therefore not stealable, nor usable by the monster. Gelatinous cubes, rock moles, and purple worms should get this flag. (Also some other proposed “eater” monsters, like the bookworm.)

If a monster (like a purple worm) eats another monster, that monster’s inventory should be added into the eater’s stomach.

Gelatinous cubes can eat wooden doors in their path.

Gelatinous cubes automatically engulf items thrown at them rather than the items falling to the floor.

Iron and copper items engulfed by gelatinous cubes get corroded in the process.

Gelatinous cubes specifically seek out scrolls labeled YUM YUM to eat.