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Regirock was the first to attack Ash and th gang. It met the at the entrance to the Tree of Beginning and, beliveing they were there to do harm, attacked them with its Hyper Beam.
Regirock later chased Team Rocket throught the caves alongside Registeel it chased them untill they met up with Ash and the others, and even up to the point where Lucario broke a stone bridge between them. However, Regirock and Registeel were able to catch up to the gang easily still.
After Mew revived Ash and his friends from the Tree of Beginnings immune system, Regirock and the others left them alone.
Registeel later chased Team Rocket throught the caves alongside Regirock it chased them untill they met up with Ash and the others, and even up to the point where Lucario broke a stone bridge between them. However, Registeel and Regirock were able to catch up to the gang easily still.
Registeel eventually caught up to Ash and Lucario and restraint Lucario while the Tree of Beginning's antibodies absorbed Ash and Kid.
After Mew revived Ash and his friends from the Tree of Beginnings immune system, Registeel and the others left them alone.
Regice first attacked Ash as he was running to be reunited with Pikachu, despite Ash trying to reason with it, Regice continued its attack, beliveing they were there to harm the Tree of Beginning.
It later attempted to attack Ash while he was running over a chasm to Pikachu.
After Mew revived Ash and his friends from the Tree of Beginnings immune system, Registeel and the others left them alone.