Smilie

Smilie (Aka: Smiler or Jeffery) is similar to Smily but it is a lot smaller than Smily, it does not have the power to obliterate doors and its smile is relatively smaller than Smily's smile

Method of killing
It will scream so loud its victim's brain will explode due to the loud sounds

Trivia
Smilie's original name was going to be "Smiler" but this was changed because another specimen was named Smiler

While Smily is not a soul, Smilie is a soul because it has a human name which means it was originally a human before turning into a monster

Smilie is similar to a Dark Soul

Smilie's human name is Jeffery because of an old Terraria character Peter named "Jeff", this character is dead both in Terraria and Peter's Lore