Twilight Monsters

Twilight Monsters, warped by the power of the Twilight Realm, are altered versions of monsters, people, and creatures found in the Light. This can also refer to monsters that can use the power of Twilight, but are not totally warped. Note that the official naming convention is that boss names are prefixed with Twilit (as shown within Twilight Princess), whereas enemy names are prefixed with Shadow (as demonstrated by the official website, see Shadow Kargarok, Shadow Insect, Shadow Beasts).

The standard enemies are: The bosses are: Other creatures not wholly affected by the Twilight:
 * Shadow Kargarok, from Kargarok. They make a distinctive horn sound.
 * Shadow Vermin, from Rats. Try not to encounter them while swimming.
 * Shadow Insects, the insects of darkness that steal the Spirits' light.
 * Shadow Keese, from Keese of course. Fun to bite.
 * Shadow Deku Baba, from Deku Baba.
 * Shadow Bulblin, from Bulblin. Separated into Archers and Clubbers as normal Bulblins are.
 * Shadow Beasts, enemies that create Portals for you to use after being defeated.
 * Twilit Bloat, an oversized Shadow Insect.
 * Twilit Parasite, Diababa, an enormous Deku Baba that holds the first Fused Shadow.
 * Twilit Igniter, Fyrus, the leader of the Gorons, Darbus that was corrupted by the second Fused Shadow.
 * Twilit Aquatic, Morpheel, a sarlaac-like beast at first glance, but is an enormous eel buried underground. Holds the final Fused Shadow.  It actually behaves like Morpha did.
 * Twilit Fossil, Stallord, an enormous skeletal dinosaur brought back to life by Zant's sword. Its skull can fly on its own and guards the Mirror of Twilight.
 * Twilit Ice Mass, Blizzeta, Yeta's newly corrupted form that attempts to kill Link to keep the second mirror shard.
 * Twilit Arachnid, Armogohma, seemingly the cross between an Armos Statue and a Gohma. Its true form is rather cowardly and guards the 3rd mirror shard.
 * Twilit Dragon, Argorok, an armored dragon that terrorizes the City in the Sky and guards the final mirror shard.
 * Wolf Link, Link's wolf form that he takes whenever exposed to Zant's evil magic.
 * Dark Beast Ganon, Ganondorf's enormous pig form.