We did not dabble in much, we only ate the buddae jung-chol (?) For 2 people $30.
In English it's called Army Stew. It's basically ramen noodles in a spicy broth with everything in it (pork, hotdogs, spam, rice cakes, tofu, beansprouts, kimchi).
It's pretty awesome for a cold day if you ask me. And honestly , you can't really mess it up . It's on the spicier side, as the broth cooks it gets spicier. Comes with 2 rice.
It was nicely heated inside and there were maybe a few empty tables . Considering it was boxing day, and none of the nearby sushi houses were open we were happy with our visit. Waitress was attentive but didn't talk much.