From Bulbapedia, the community-driven Pokémon encyclopedia.
The Groundbreakers set symbol
Groundbreakers was to have been the first expansion set for the Pokémon Trading Figure Game. The set's release was delayed numerous times until the eventual cancellation of the TFG. Had Groundbreakers been released, it would have included 38 new Pokémon figures, 4 new Trainer figures, new Trainer cards and 2 new Special Conditions.
Like Next Quest, Groundbreakers had two one-player starter sets: Skydive and Whirlwind. Both sets were initially released exclusively at Wal-Mart as part of a special distribution deal, though Skydive sets were much more prevalent than Whirlwind. The starters eventually began to appear in other retail stores, such as Toys "R" Us shortly before the TFG's cancellation. Consequently, these figures are the only ones from Groundbreakers to see official release.
A Groundbreakers checklist was revealed as part of promotional material for the expansion, hence the knowledge of the set's content. A number of the remaining unreleased figures are known to exist, obtained through unofficial distributors, special occasions, in some TCG tin boxes, or from showcases. These figures remain sought-after among collectors of the TFG.
As with the American release of Next Quest, none of the figures have rarity symbols. It is unknown whether European and Australian figures were to have rarity symbols as they did in their respective Next Quest launches had Groundbreakers been successfully released.
Trainer card list