- No other Pokémon has the same type combination as Alolan Rattata and its Alolan evolution.
- They are also the only Normal-type Pokémon with a double weakness.
- Alolan Rattata is the first Dark-type Pokémon in National Pokédex order.
- In the Pokémon Red and Blue beta, Rattata was originally known as Rattatak.
- Rattata is notorious for being associated with the F.E.A.R. strategy.
- Rattata and its evolution share their category name with Pikachu, Raichu, Sandshrew, and Sandslash. They are all known as the Mouse Pokémon.
