Best eaten right after ordering. Although they use real potatoes for their french fries, I find them to be a bit thin. "Animal-style" definitely ups them a level though you won't be able to finish unless you're ready for a calorie overload.
Many will lament the absence of a ramen vendor, but Mitsuwa's annual Hokkaido Fair has always been about the seafood including scallops, abalone, clams and more marinated minimally to allow the flavor to shine. These items are not available regularly throughout the year and are directly from Japan. All tasted fantastic.