Aipom first appeared when they were eating bananas along with a Mankey. When Ash and co. lost their ball, one of them found and it and played with it, causing Totodile, Chikorita and Cyndaquil to follow it to a cave. They got enraged when Totodile caused them to fall off a tree and hurled sand at them. Later, they got enraged again at Team Rocket's intrusion in their territory and threw rocks and coconuts at them. When the tidal wave appeared, they quickly ran away from the area.