The jiggling blob possesses an acidic passive attack and a standard touch attack. It is not actually acidic and therefore is safe to eat.
The lava blob has a damaging fire attack and a passive fire attack. The attacks are harmless with fire resistance, and the corpse has a high chance of conveying fire resistance.
The static blob is similar to the lava blob, but has more damaging attacks and deals shock damage instead of fire. The corpse has a high chance of conferring poison or shock resistance.
The burbling blob is a more powerful version of the jiggling blob, possessing a much more powerful acidic passive attack. Like the jiggling blob, the corpse is not actually acidic and is therefore safe to eat.
The moldy pudding is similar to a brown pudding or ochre jelly. It possesses an engulfing attack that will decay organic items in your inventory.
See Giant shoggoth
These giant amoeboid creatures look like nothing more than
puddles of slime, but they both live and move, feeding on
metal or wood as well as the occasional dungeon explorer to
supplement their diet.
But we were not on a station platform. We were on the track ahead
as the nightmare, plastic column of fetid black iridescence oozed
tightly onward through its fifteen-foot sinus, gathering unholy
speed and driving before it a spiral, re-thickening cloud of the
pallid abyss vapor. It was a terrible, indescribable thing vaster
than any subway train -- a shapeless congeries of protoplasmic
bubbles, faintly self-luminous, and with myriads of temporary eyes
forming and unforming as pustules of greenish light all over the
tunnel-filling front that bore down upon us, crushing the frantic
penguins and slithering over the glistening floor that it and its
kind had swept so evilly free of all litter.