"It makes a nest to suit its long and skinny body. The nest is impossible for other Pokémon to enter."
If Furret was cautious and stalwart, then Furret is quick and reactive. It's noted how fast this Pokemon can be, and as the Pokedex entry above notes, it doesn't let anything get into its home. In the anime, Ash's first challenge in the Johto League was against a Furret. It battled Pikachu, which give Furret an advantage because it knew ground type moves. Sure enough, it almost won.
Furret's Basic Moves are Quick Attack and Sucker Punch, its Special Attacks are Hyper Beam, Brick Break and Dig.