Grookey’s sticks aren’t very durable, so they need a steady supply. Maple or hickory makes the best sound, so Grookey will tear twigs off whenever they find one. You can always tell a troop of Grookey has passed through by seeing which trees have been stripped bare.

Thwackey are ideal partners for musicians, as their timing is always perfect. They’ll keep playing music all day unless they’re distracted though, so Musicians who don’t want to spend time training are known to wear headphones wherever they go.

The grass that makes up Rillaboom’s hair also acts as a perfect bed for maple and hickory seeds. If Rillaboom’s drum is destroyed, it will grow a new drum in its hair in a week.