More thoughts on the bestiary from the Moldvay Basic set:
Comes in two flavours:
Normal- regular bats who fly around characters and cause confusion, they are very likely to flee unless they are summoned or controlled.
Giant- they do 1-4 dmg and only have 2 HD so they aren't too giant really but i guess alot bigger than a regular bat. There is a chance they are Giant Vampire bats and thus suck blood and can cause vampirism, a neat little touch.
I'm going to try to use normal bats more often. Even if they can't actually attack I think they work really well as a "dressing", it makes alot of sense for them to be in a dungeon anyway.
The bears in the basic set are on par with the weakest dragons, I think that says alot right there. All bears have a "hug" ability that causes 2d8 extra damage if both paw attacks hit the same target, it is this ability that really makes bears lethal.
Black- the regular bear, not too threatening but a good companion for a druid. Also perfect for being a campsite invader, punish the players for not storing their food properly.
Grizzly- Now we are talking, these guys are scary. Although I might use the polar bear stats for a papa or mama grizzly.
Polar- The main reason characters should avoid cold regions.
Cave- These 15ft tall killing machines are coming for your blood- really- "If hungry, they will follow a track of blood until they have eaten." so you better not walk around with unbandaged wounds in bear country.
Although I think fire beetles are lame, oil beetles and especially tiger beetles are pretty cool. I think they are an interesting alternative to some of the more conventional fantasy dungeon monsters.
I never really liked these dudes until quite recently, they have a really cool description in the 5th ed playtest that changed the way I think of them. So barbaric Germanic tribesmen they are! Picts and such. Great for populating the wilderness as "wildlings" and giving PC barbarians a place to come from.
Another useful if not terribly exciting addition. Great for hunting and eating at feasts. You can use these same stats for a deer buck if you want.
I hate the name, I hate the concept. My goblins aren't hairy so they sure as hell won't have giant hairy cousins. In a game where an Owl Bear is a owl-bear hybrid animal bugbears just cause confusion. I don't use bugbears, they don't exist in my gameworld.
A really cool concept. I would leave as is. I love creatures like the crawler and gelatinous cube because of their role as waste disposal in the dungeon environment.
-More to come. Cheers!