RGB003: The Secret of Kangaskhan

VS. Kangaskhan is the third chapter of Pokemon Adventures Volume 1.

Red has set off from Pallet Town and reached Viridian City, where he found that the Gym was closed. Unhappily, he continued off to Viridian Forest where he saw Green (Blue in Japanese) attacking a Kangaskhan whose baby was injured. Red treated it and soon after, Green and Red became Rivals.