Partner Pokémon (Ranger)/Ranger series/Guardian Signs

In the main storyline, players get to befriend a ukulele-playing on Dolce Island. The Assist of Ukulele Pichu gets several upgrades as players progress through the game. When playing in the past, due to the fact that the Ukulele Pichu stays in the present, players may choose as their Partner any Pokémon whose heart slate they have obtained from a temple. When first arriving in the past, players have a as their Partner.