The Tusk Attack is an move that can be used by SnowHorns and EarthWalkers in Star Fox Adventures. As the name implies, it is where the species attack using their tusk and horn respectively. Fox can make use of the move while riding either dinosaur.
The first time it is used is at DarkIce Mines, where a SnowHorn helps Fox McCloud and Prince Tricky by smashing down enemies and gates that cannot be destroyed otherwise. Tusk Attack is necessary as Fox is attempting to rescue Belina Te, and later, Tricky, as he is lost in the blizzard.
The second time it is used is by an EarthWalker in captivity on Dragon Rock, once freed by Fox, informs him that each of the patrolling robots on Dragon Rock is invincible due to their shields. The only way to destroy the robots is to run around the area and smash rock walls covering the generators for the robots' shields. This causes generators to disappear and open a hallway that leads to the captive HighTop on the planet.
Tusk Attack is quite effective against the crawling dinosaurs around the area, but much less to the plants and GrubTub Fungus. When Tusk Attack is used on an enemy it creates sound effect that sounds like punching and kicking. The Tusk Attack can also knock down Staff Energy Gems from Magic Plants to refill Fox's Staff Energy Meter.