5S-FE MK2 Non-Turbo Engine What happened here???

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So my MR2 has 212k miles on it. Iv been driving it for the past few days. No issues at all. I drove it to work yesterday. When I pull it I hear this noise. Sounds like metal hitting metal. I drive it home. The whole way sounds the same. Only stay like 3 mins from work. I get home and see this. Its oil mixed with water. Are there any known problems for this? Did I throw a rod? Is it a valve? Im not sure. I have not looked into it yet due to work. But if anyone has any ideas what it could be