Known rare creatures include (but are likely not limited to) Mimics, Nymphs, Truffle Worms, Pinky, Moths, Gold Critters (Gold Bunny etc.), Bound NPCs (Webbed Stylist, Bound Mechanic), Tortured Souls, Martian Probes and all types of Mimics (Biome Mimics will have their name specified). It can also identify Ice Golems/Sand Elementals, as well as a few other miscellaneous rare enemies: Tim/Rune Wizard, and Doctor Bones/The Bride/The Groom, and Goblin Scout.
The Lifeform Analyzer also picks up a multitude of dungeon enemies, including:
- Added to the game.