Mice-like Aliens are small creatures living in Planet Kouraku. They appear in the Bomberman Jetters anime in "Pursue the Hige Hige Bandits!." Although their appearances are that of a mice, they refer themselves as "Aliens." It is unknown what type of creature they truly are.
Chuuko is a female Alien and Chuuta's fiancee. She was spying on the Hige Hige Bandits, whom were on a day-off, but she got hungry watching them eat. She decided to eat some of their food in the basket, however, she got trapped inside. Chuuta and the Jetters thought that the Hige Hige Bandits kidnapped her, which the Hige Hige Bandits ran away from the Jetters questioning themselves to why they are being chased by them. Once the Hige Hige Bandits found the hotspring they've been looking for, leaving all belongings in the observatory, Chuuko was free.
Chuuta is a male Alien and Chuuko's fiancee. When he thought that Chuuko was missing, he and the Jetters searched for her. However, once they've found her trapped inside the Hige Hige Bandits' food basket, they had thought that the Hige Hige kidnapped her. They had pursued the Hige Hige into the observatory. once the Hige Hige Bandits found the hotspring, Chuuko was reunited with Chuuta.
- When White Bomber called them "mice", they denied the fact and called themselves "Aliens". Though, it is unknown what they are really called.
- Later, White Bomber called them "hamsters".