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

When attacking certain amorphous monsters (could be just puddings and gelatinous cubes, but also maybe jellies and other blobs) in melee, it is possible for your weapon to get stuck in the monster, yanking it out of your possession and putting it in the monster’s inventory. Unless, of course, the weapon is cursed.

A b-class monster which is a shapechanger and may transform into any P, b or j monster.

Merge the P and b monster classes, on the grounds that puddings and blobs are both classes of amorphous monsters that are sparsely populated. (Some attempts have been made to also merge the j monster class in.)

New monster: green cube, which combines the abilities of a green slime and gelatinous cube: both sliming and paralysis.