Frisk
When it enters a battle, the Pokémon can check an opposing Pokémon's held item.
Infiltrator
The Pokémon's moves are unaffected by the target's barriers, substitutes, and the like.
This Pokémon emits ultrasonic waves from its large ears to search for fruit to eat. It mistakes Applin for its food.
Noibat can change the frequency of its sound waves at will, and it generates ultrasonic waves of up to 200,000 hertz.