You know, the idea of Santa Goku is just hilarious to me—imagine him flying through the sky on his Nimbus sleigh, dropping presents with a Kamehameha-powered 'Ho Ho Ho!' But does he have a Super Saiyan form? Honestly, I don’t think so. Santa Goku feels like a playful mashup, not a canon character, so he’d probably stick to his classic look. Though, if he did go Super Saiyan, his beard would probably turn golden too, and the presents might arrive at light speed.
Still, it’s fun to imagine. Maybe he’d use the Dragon Balls to extend Christmas delivery deadlines or fight off Grinch villains like Frieza Claus. The mental image alone is worth a fanart or two. I’d love to see someone draw that—Santa Goku with spiky SSJ hair, maybe even a Santa hat fused into his aura.