As a clarification on the bakelite backpack: it gives Mval / 2, rounded down. So it's down to 2 possibilities for the Mval, and it tends to be a multiple of 5 except for early monsters. Not sure about sabre-toothed lime. I've updated a bunch of wiki values.
I checked Professor Jacking: bashed 100, so meat is 200.
I checked the twins and got the same values, but I think Bubblemint Twins is more likely to be 65 than 64.
I checked the skullbat and got a different value: I bashed 14, so that'd be 28. Same as the briefcase bat.
Scary pirate is 45 on the wiki: the page is at "Scary pirate (cursed)".
I checked Professor Jacking: bashed 100, so meat is 200.
I checked the twins and got the same values, but I think Bubblemint Twins is more likely to be 65 than 64.
I checked the skullbat and got a different value: I bashed 14, so that'd be 28. Same as the briefcase bat.
Scary pirate is 45 on the wiki: the page is at "Scary pirate (cursed)".