Burger King sells several variants that are either limited-time seasonal promotions or tailored to regional tastes and customs.

[8] Believing that the success of the rival product was its size, he devised the Whopper, naming it so because he thought it conveyed "imagery of something big".

[9] Major fast food chains did not release a similar product until the McDonald's Quarter Pounder and the Burger Chef Big Shef in the early 1970s.

Arenas opted for honoring the advertised opening date but using the much smaller regular hamburger buns locally available.

The Moldy Whopper campaign reached a level of awareness 50 percent higher than Burger King's ad in the 2019 Super Bowl.

[27][28] The Whopper is a hamburger consisting of a flame-grilled 4 oz (110 g) beef patty, sesame seed bun, mayonnaise, lettuce, tomato, pickles, ketchup, and sliced onion.

Burger King began test marketing the Impossible Whopper in April 2019 at locations in and around St. Louis, Missouri.

The hamburger contained seven stacked beef patties and measured 5 in (13 cm) high, weighed almost 2.2 lb (1.00 kg), and had more than 1,000 kcal (4,200 kJ).

[41][42] The campaign was met with unexpected popularity in Japan, sparking multiple YouTube videos and blog posts about the burger.

It consists of four Whopper patties on a 9.5 inch sesame bun,[43] sliced into six pieces and topped with pepperoni, mozzarella, basil pesto and marinara sauce.

A variation called the Angriest Whopper debuted in 2016; The new variant added a red bun with hot pepper sauce baked into the roll.

[47] The Angry Whopper was released with a viral marketing push created by Burger King's advertising agency at the time, Crispin Porter + Bogusky.

The second part consisted of a Facebook-oriented program where the company would issue a coupon for a free sandwich if the consumer would de-friend 10 people on their Facebook page.

[57] In October 2019, Hungry Jack's in Australia introduced the Rebel Whopper which contains a meat-free patty made from protein extracted from legumes, created in partnership with Australian company v2food.

[61] That same month, the Plant-Based Whopper was introduced by Burger King outlets in China but with a patty made by UK company The Vegetarian Butcher.

[65] By July 2002, the chain had sold nearly fifty million of the sandwiches, eventually displacing the BK Broiler's initial launch figures as the company's best selling product introduction.

[70][71] The successful introduction of the Chicken Whopper was one of the few noted positive highlights of the company during negotiations for the sale of Burger King by its then owner Diageo to a group of investors led by the TPG Capital; Chicago-based consulting firm Technomic Inc. President Ron Paul was quoted that he was encouraged by recent product changes at Burger King such as the new Chicken Whopper, but he said it was too early to tell whether the changes have been successful.

[80] Another prank from 2013 claimed that the company was introducing a "hands-free Whopper holder" to allow people to eat the sandwich while doing other activities.

[85] Crispin, Porter + Bogusky, Burger King's advertising company of record from 2003 to 2011, produced several notable ads for the Whopper.

[86][87] A social media based promotion from Crispin Porter + Bogusky in 2009 gave a free Whopper coupon for every 10 friends on Facebook a user would drop.

[92] Several of CP+B's advertising programs for Burger King, including ones for the Whopper, drew criticism from groups for perceived cultural insensitivity or misogynistic themes within them.

In May 2006, in an American promotion of the Texas Double Whopper, Burger King released a campaign called the "Manthem" which parodies Helen Reddy's "I Am Woman".

Disappointed by the meager portions he is served, the man bursts into song, expressing his desire for a Texas Double Whopper, in place of what he deems "chick food."

[99] However, major Russian broadcasters rejected the ad due to concerns over its possible insinuation that the Whopper was better than drugs, as red poppies are in the same plant family as the source of heroin.

[98][99][100] The company refused to comment of the veracity of the networks' claims, and instead posted the advertisement on its YouTube channel, eventually pulling it from that service as well.

[106] Despite the controversy, the campaign won the Grand Prix in the direct category at the Cannes Lions festival (under the title Google Home of the Whopper), beating Fearless Girl by one vote.

The open station differs from the company's usual kitchen model in that it is in plain sight of the customer instead of being located in the back-end of the store.

[119] Additionally, the company sells beer at the Whopper Bar locations, including Budweiser, Bud Light, and Miller Lite in aluminum bottles designed to maintain temperature.

The move, designed to target the important 30-and-under demographic, has been called risky by industry analysts because the company is known as a fast food purveyor and not as an alcoholic beverages seller.

Other industry consultants have disagreed with the assessment, believing that the move is timely because the company is growing with its aging customer base.