Chomp is Wario's Standard Special Move. When the special move button is pressed, Wario opens his mouth and bites forward. This acts as a grab, and can hit shielding enemies. If the button is held down, his mouth stays open making it possible to grab anyone who moves into range. While grabbed, Wario can bite by pressing the special move button, dealing a small amount of damage each time.
Chomp can also be used to eat items and projectiles, up to 3 if Wario is close enough. Wario can do nothing and simply swallow the projectile or item. If it's a status or recovery item like a Superspicy Curry or a Heart Container, Wario will immediately gain it's effect. Some items like a Bob-omb are damaging to Wario, dealing 6% damage.