Monsters

Day

 * Slime (Green, Blue, Purple)
 * Pinky (uncommon)
 * Harpey
 * Bunny
 * Goldfish

Night Zombie Demon Eye Harpey Dr. Bones (rare) Groom (rare) Goldfish Bunny Corrupt Goldfish (blood moon) Corrupt Bunny (blood moon)

Desert

 * Vulture
 * Antlion

Ocean

 * Shark
 * Jellyfish (Pink)
 * Crabs

Dirt Layer

 * Slime (Blue, Red, Yellow, Purple)
 * Pinky (uncommon)
 * Giant Worm
 * Piranha
 * Goldfish (Uncommon)

Stone Layer

 * Slime (Black, Mother, Baby)
 * Giant Worm
 * Skeleton
 * Tim (rare)
 * Undead Miner
 * Cave Bat
 * Piranha
 * Goldfish (Uncommon)

Corruption Monsters

 * Devourer
 * Eater of Souls
 * Little Eater
 * Big Eater

Meteor Monsters

 * Meteor Head

Dungeon Monsters

 * Dungeon Guardian
 * Angry Bones
 * Cursed Skull
 * Dark Caster

Underground Jungle Monsters

 * Hornet
 * Man Eater
 * Piranha
 * Snatcher

Surface Jungle Monsters

 * Snatcher
 * Jungle Bat
 * Jungle Slime
 * Piranha

Underworld Monsters

 * Bone Serpent
 * Fire Imp
 * Piranha
 * Goldfish (Rare)
 * Demon
 * Hellbat
 * Lava Slime
 * Voodoo Demon

Goblin Army Spawns

 * Goblin Warriors
 * Goblin Sorcerers
 * Goblin Thieves
 * Goblin Peons

Special

 * Servant of Cthulhu
 * Dungeon Guardian
 * Skeletron
 * King slime
 * Eye of Cthulhu
 * Eater of Worlds