Jungle was the second expansion released for the Japanese Pokémon Trading Card Game in 1997, arriving as the phenomenon continued building momentum in Japan. Following the success of Base Set, Jungle introduced new Pokémon and mechanics that helped establish the game's early identity. The set remains foundational for collectors tracing the lineage of Japanese Pokémon cards from their earliest years. Rhyhorn appears here as a Stage 1 evolution card with artwork capturing the Ground-type Pokémon's imposing, armored form. Collectors seek out Jungle cards featuring popular evolution lines and Pokémon with compelling visual presentation, making this a natural target for those building complete evolutionary families or assembling thematic collections from the set's original release period.