A dynamite roll is a Makizushi type of Western-style sushi. It usually contains a piece of shrimp tempura, avocado, and cucumber. It can also include proteins like salmon, crab, tuna, hamachi/yellowtail, vegetables like radish sprouts or oshinko, and garnishes like masago/tobiko (fish roe). It is combined together with a sauce consisting of kewpie, Worcestershire, soy sauce, Sriracha or wasabi, and sometime garlic. https://jangorecipes.com/dynamite-roll-sushi/