100% complete (all gems and bonus achievements), aside from Chaos in the Grand Labyrinth. Much more substantial than I was expecting, the Special Episode DLC was a great reason to return once again to the charming Captain Toad: Treasure Tracker - this is about the same length as one of the episodes from the base game. Although the majority of the 18 new challenges take place in existing maps, the varied objectives make the experience feel fresh, while the five new wholly new maps are impressively detailed and imaginative.