- Dugtrio and its pre-evolution share their category name with Drilbur. They are all known as the Mole Pokémon.
- Dugtrio has the highest base Speed stat of all Ground-type Pokémon.
- In the Pokéathlon Hurdle Dash, Dugtrio and Diglett are seen to go underground rather than physically jump out of the ground.
- In Generation V, when Dugtrio and Diglett are sent out, they merely fade onto the screen instead of dropping down like all other Pokémon.
- In the Poké Transfer, Dugtrio and Diglett run between bushes rather than jump.
- Dugtrio is immune to the move Telekinesis. However, the effect of the move remains if Dugtrio obtains it via Baton Pass.
- If Diglett or Dugtrio uses Supersonic Skystrike, it soars through the sky while still embedded in a piece of ground.
