The Gundalians are a species from Bakugan: Gundalian Invaders. They have the ability to disguise themselves as humans, though with some minor flaws such as pointed ears. The Gundalian Zenet can take this further and disguise herself as another being. In their true form, a Gundalian has a grey skin tone, with the exception of Kazarina who has a blue skin tone, and some kind of crust on their foreheads that can go all around the head.
- Apparently, a Gundalian's skin is very rough as Zombie Giant-Man stops squeaking Zenet as soon as she takes off her disguise because her skin is rough