|Family and Relations||N/A|
|First Appearance||Mazinger Angels|
Grosten resembled a gigantic chubby gecko. He had green scales with an orange underbelly, hands and feet. Around his large egg shaped eyes was a scruffy black mane with his true face located in the middle.
Powers and AbilitiesEdit
Grosten could burrow underground and emit a highly corrosive acid from its mouth.