In Kicking It from Here Into Tomorrow!, Pelipper was resting in Vermilion City when Goh came across it and attempted to catch it. This caused Pelipper to fly away, inadvertently leading Goh to discover Team Rocket's secret base.
Pelipper continued to deliver the Rocket Prize Machine to the trio whenever they request it.
As time went by, Pelipper got closer to Jessie, James, and Meowth, resting with the group in a calmer time. In A Rollicking Roll…, Pelipper tried to use the Rocket Prize Master while everyone was resting, due to a malfunction the equipment ended up releasing several Poké Balls containing several Gulpin.
In Errand Endurance!, Team Rocket sent Pelipper to get them some Casteliacones to go with their apple pie. With help from Team Rocket, Pelipper was able to collect some Casteliacones and returned to their base with them, only for Morpeko to eat them before they could.
Pelipper is strong in battle, as seen in To Train, or Not to Train!, where it was even able to withstand a super-effective Spark from Professor Cerise's Yamper.
Pelipper is shown to be absent-minded, as seen in Errand Endurance!, when Team Rocket had to disguise themselves as ice cream vendors and give Pelipper the ice cream themselves when it forgot what it was supposed to be doing.