Well the problem is that Scorpion can't really die permanently. Goku would need to destroy the nether realm to keep scorpion dead. Realms can be assumed to be the size of planets and earth is considered a realm. But nether realm takes any evil soul so it might be infinite, I'll just say that Goku wins for simplicity. We will say that one death equals victory, even if that wasn't the case. Goku could destroy the nether realm most likely. I'm a mortal kombat fan so I understand the scaling.