>>11000141910. Goddamn bats. Self explanatory - they fly around sporadically, like caves, and are most active in the dark. Tiny ones are harmless and shy.
10.a. But not the giant ones.
10.b. And vampire bats mean trouble.
11. Daddy Longlegs. A compact-looking spider that resides in a nest of webs, but emerges as a 5-block tall spider that's mostly leg. Difficult to hit because of the body's height.
12. Golem. Disguises itself as a natural terrain block, but turns into a player-model with that terrain as its texture. Passive, but making the wrong ones mad could be a bad idea. (Like stone or lava golems, for instance!)
13. Doppleganger. A pale, eerie looking humanoid that looks for things to imitate. Animals that are being imitated don't wander around quite like their normal counterparts do, and have a habit of staring. In multiplayer, dopplegangers make a concerted effort to follow and duplicate players, down to their floating names. Attacks with flailing, whip-like fingernails and a shrill, dissonant screech.
14. Vampire. Burns in sunlight, has a classical Stoker vampire's abilities. (Can turn into a bat, a wolf, or a vapor.) Has a really bad habit of not actually dying but just returning to its coffin instead. A relentless and fast-moving pursuer, but won't pass through a door that the player has not opened themselves recently and drops absolutely everything to pick up seeds that are thrown.
15. Stranglers. Otherwise normal-looking vines that rustle before launching out at the player. Slice them to cause them to uproot as roaming tubers.