Ok……
You don't have to cook meatball, just eat them raw. That's weird, I think you can eat meatball once you have it, it's an option, you can't miss that. The amount of food is 6. (Maybe I should consider changing the description of the meatballs. The reason why meatballs are raw is originally I had planned that you could cook meatballs.)
Getting Vincent angry is the tricky part. Give him yellow berries and then don't make Teddy angry by choosing the right option.
There are currently only two endings, both of them result in file corruption. It only depends on whether you wait 15 minutes or not. Since the ending text after waiting 15 minutes is not completed at this moment, it might feel a bit weird.
I plan to add a real ending in version 1.0. Wait for me to update it, both endings look a bit sketchy right now.