Hyper Cutter is an ability. The Pokémon's attack statistic cannot be lowered by the opponent's moves (such as Growl or Charm). Compare to Clear Body and White Smoke. In Pokémon Emerald, if a Pokémon with Hyper Cutter uses the HM Cut in the field, more grass will be cut than usual.

Pokémon

Pokédex	Pokémon	Sprite	Type	Obtained
#098	Krabby			Natural
#099	Kingler			Natural
#127	Pinsir			Natural
#207	Gligar			Natural
#303	Mawile			Natural
#341	Corphish			Natural
#342	Crawdaunt			Natural
#328	Trapinch			Natural
#472	Gliscor			Natural