Look no further — the end-all be-all of junk food concoctions has been created and dubbed the Megaburgerpizza. Unfortunately for American gourmands, the calorie-filled treat is only available in Japan. But, maybe that’s a good thing.

Advertised as 400 grams, or 14 oz., of beef patties covered by two 11-inch pizza pies, the Megaburgerpizza is clearly not a nutritious suggestion. But with toppings that include pickles, onions, cheese, ketchup, and mustard, who could resist giving it a try?

The 2.65-lb. fast-food behemoth is sold exclusively at Pizza Little Party in Japan from Sept. 1 to Nov. 22 for ¥2,580 ($26). Here are some more unconventional fast-food Frankensteins you have to see to believe:

  1. Ramen Burger - This all-beef patty between two ramen noodle buns was the brainchild of Keizo Shimamoto. The 150 Ramen Burgers that he prepped for a Brooklyn flea market sold out in minutes.
  2. Cronut Burger - Some people thought the combination of a doughnut and croissant was an odd mix. But add a burger to the recipe and you get the jaw-dropping Cronut Burger.
  3. “Kraken” Burger - Washington native Beau Chevassus wowed even the burger chefs at Jack In The Box when he ordered the 9,000-calorie “Kraken” Burger. Spending $38 on the plus-sized burger, Chevassus called his masterpiece the most expensive burger ordered at a fast-food chain.
  4. “T-Rex” Burger - Wendy’s broke the bank when it marketed its 3,000-calorie "T-Rex" burger, which weighed in at 2 lbs. 4 oz. Feedback from consumers regarding “inappropriate” portions caused the burger chain to pull the menu option.