When Mareanie sees James' purple face after he gets poisoned by it, it has a strong affection on him, even blushing red. Also, it likes to grab his head using its tentacles.
During Professor Burnet and Professor Kukui’s wedding, Mareanie fantasized about marrying James as well.
Mareanie first appeared attacking James because it wanted to eat his Corsola-shaped helmet, but later felt disappointed when it found out that it was only a helmet. After Jessie, who was attacked by its tentacles, gave James a push, it poisoned him, causing him to look like another kind of its species. Thus it blushed and started to chase him, much to his dismay. However, it later helped Team Rocket and it was so strong that it managed to poison Ash's Rowlet.
|Spike Cannon||The Sun, the Scare, the Secret Lair!|
|Sludge Bomb||The Sun, the Scare, the Secret Lair!|
|+ indicates this Pokémon used this move recently.*|
- indicates this Pokémon normally can't use this move.
- Like Victreebel, Cacnea and Carnivine, Mareanie is the fourth Pokémon that shows affections for James.
- Mareanie is the first Water-type Pokémon that James officially keeps on his team.
- Mareanie is the second Pokémon James has owned that shows affection to him and is not a Grass-type. The first one being Chimecho which is a Psychic-type.
|Team Rocket's Pokémon|
|Jessie · James|