Lifeform Analyzer

The Lifeform Analyzer is an equipable accessory that displays the name of rare monsters (Dungeon Slimes, Lost Girls, etc.) and undiscovered NPCs (Mechanic, Wizard, etc.) around the player. It is one of the three parts necessary to make the R.E.K. 3000, with the others being the Tally Counter and the Radar. It can be bought from the Traveling Merchant.

List of creatures detected

 * Critters:
 * Golden Animals
 * Truffle Worm
 * NPCs
 * Bound Goblin
 * Bound Wizard
 * Bound Mechanic
 * Webbed Stylist
 * Tortured Soul
 * Enemies
 * Mimic (all types)
 * Tim
 * Doctor Bones
 * The Groom
 * Dungeon Slime
 * Goblin Scout
 * Rune Wizard
 * Lost Girl
 * Moth
 * Ice Golem
 * The Bride
 * Rainbow Slime
 * Bone Lee
 * Paladin
 * Skeleton Sniper
 * Tactical Skeleton
 * Skeleton Commando

Trivia

 * The Lifeform Analyzer could be a reference to a device of the same name in the movie Star Wars, which is a portable sensor package that could be carried by an individual.
 * For unknown reasons it does not count Pinky as rare creature.

History
Analyseur de Forme de Vie