The Mini Smiling Critters seem to act like blood-thirsty, violent monsters with no hint of remorse. Their sadistic tendencies are likely from the fact they are incredibly inhumane, acting like animals and even making animal sounds while hunting their prey. Their relentlessness is thoroughly shown, as they're willing to go inside another Smiling Critter and use him like a puppet. They go inside your skin and eats their way inside your body and flesh