Admittedly this burger does weigh in heavier than Mallie's 185lb'er, but it's not available to be ordered off the menu, so it doesn't really qualify as the World's Largest Hamburger (well, in my book anyway). Still, a mighty fine effort! Although I don't think I'd be too keen on trying it.... what gives with the black buns?

From: http://www.japanprobe.com/2009/07/05/the-worlds-biggest-hamburger/

The hamburger, which was made for a promotional event for the Phoenix Seagaia Resort, weighed it at 136.2 kilograms (300 pounds), beating the previous world record burger, which weighed a measly 84 kilograms (185 pounds).

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The hamburger, which was made for a promotional event for the Phoenix Seagaia Resort, weighed it at 136.2 kilograms (300 pounds), beating the previous world record burger, which weighed a measly 84 kilograms (185 pounds).