Yup. It's semi-nomi (This card can only be Special Summoned by...) so once it's been summoned by its effect it can be special summoned by Goyo Guardian.
On that note I fucking hate Goyo Guardian. It's one of the prime examples of how cheesey synchro monsters are. It's ridiculously easy to summon with things like Rescue Cat, has 2800 attack for a level 6 monster which is obscene, and has a really cheap effect. At least the bastard got limited.