Jaco actually preferred Flying-type Pokémon over Electric-types and believed his Electrike was doomed for failure. However, Brock didn't believe it and said Electrike was stronger than others. Jaco proved his lack of knowledge after trying to brush Electrike with a metal brush, only to get zapped by the built-up static energy. With the help of Ash, Dawn, Brock, and even James and Meowth, Jaco and Electrike developed a closer friendship, and it was able to use its Thunderbolt perfectly. Later, against what James and Meowth wanted, Jessie attempted to steal Electrike. However, it evolved into Manectric and was able to stop Jessie. Jaco's teacher Cal was impressed by what he and Manectric had done and graduated them on the spot.