The fifth set in the Pokémon Ga-Olé Grand Rush series was released on June 8, 2020. It features 66 standard disks and 3 secret disks. It is the twentieth and final set overall.
The fifth and final set in the Grand Rush series introduced Generation VIII Pokémon to Pokémon Ga-Olé: the Galar first partner PokémonGrookey, Scorbunny, and Sobble and their evolutionary lines. The Kalos first partner Pokémon and their evolutions were also featured for the first time since the inaugural set. The final forms of each of these families can Combo Rush with one another, one of the central mechanics of the series. Grade 4 versions of Gardevoir and Gallade can also Combo Rush with each other as can the Swords of JusticeCobalion, Terrakion, and Virizion. Grade 5 Pokémon supporting the Double Rush mechanic included two Mewtwo with the ability to Mega Evolve into Mega Mewtwo X and Mega Mewtwo Y, the Primal forms of Groudon and Kyogre, the Black and White forms of Kyurem, and the Alpha Pokémon Arceus. Most courses in this set featured the Ultra Beast Appears! icon, indicating players could randomly encounter Ultra BeastsGuzzlord and Naganadel during gameplay, which also have the Double Rush ability.
All disks in this set feature a Meteor Mark (Japanese: ながれぼしマーク), indicating they could be used with Pokémon Ga-Olé's successor, Pokémon Mezastar. Grade 1, 2, and 3 Pokémon could be scanned on Pokémon Mezastar machines to provide an attack increase, whereas Grade 4 and 5 Pokémon could be scanned and added to a player's Support Pokémon roster. A special Grade 4 Zeraora disk with a collection number of "XXX" was later available on a final limited course from July 22, 2020. If scanned on a Pokémon Mezastar machine, Zeraora would also unleash a War Cry and summon two stronger opponents alongside the Boss Pokémon during a battle.
Due to the restrictions imposed in Japan in response to the COVID-19 pandemic, the release of this set was pushed back from April 23, 2020 to June 8. As a result, Trainer and Battle Mode and all regular courses and were available to play immediately upon its eventual release. Promotional material included in the June 2020 issue of CoroCoro Ichiban! revealed the intended release dates for non-launch courses: the Black Kyurem & White Kyurem Double Rush Course was originally planned to begin April 30, the Its Z-Move! Zygarde Course was originally planned to begin May 7, and the Arceus Double Rush Course was originally planned to begin May 14. Each of these courses were also scheduled to end on July 1, but these were extended until Pokémon Ga-Olé machines began to be retired in early September.
As the final Pokémon Ga-Olé set, the lineup for Trainer and Battle Mode consisted entirely of Battle Leaders. The first four Trainers previously featured as the final opponents in previous sets and returned in this set with strong teams. Of note were Racto's team, all of which could Mega Evolve, and Emako's team, all of which could use Z-Moves. Karimi, previously featured as the opponent in CoroCoro Dream Fight! Rayquaza Super Challenge events, could be challenged upon defeating the other four Battle Leaders. Promotional Xerneas or Yveltal disks could be dispensed for an additional ¥100 following a battle with Karimi, with 'WINNER' versions available to those who successfully defeated his team. Xerneas and Yveltal are also able to Combo Rush with each another.
Aerodactyl and Togekiss were added as Support Pokémon from this set. Players registering a Ga-Olé Pass for the first time would automatically receive Aerodactyl as a Support Pokémon as part of the Pokémon Ga-Olé Welcome Campaign.
