Flying Shark

Flying Shark is a military-themed vertically scrolling shoot 'em up game in which players take control of the titular biplane through five increasingly difficult levels in order to defeat an assortment of military enemy forces like tanks, battleships, airplanes and artillery as the main objective. The title initially appears to be very standard, as players control their plane over a constantly scrolling background and the scenery never stops moving until a runway is reached. Players have only two weapons at their disposal: the standard shot that travels a max distance of the screen's height and three bombs.

The bombs are powerful weapons capable of obliterating any enemy caught within its blast radius. Various items are scattered through every stage that appear by destroying certain enemies: Shooting down colored waves of enemy planes spawn items like "S" power-up icons, point bonuses and extra lives. Certain enemies on the ground spawn "B" icons that increases the player's bomb stock when destroyed. Every time the player lands at a runway beyond the first takeoff, the amount of bombs multiply 3000 points to the player's total score.

Flying Shark's creation process and history was recounted through various Japanese publications by composers Masahiro Yuge and Tatsuya Uemura, both of which collaborated with the soundtrack and marked the first time Toaplan made use of FM synthesis. Yuge stated that the basic structure for the game was already decided during development of Slap Fight by pursuing the excitement of shooting and dodging, settling on the bomb and shot system, claiming that firing a bomb relieved stress from players. Yuge also stated the theme for the title was a realistic depiction of war that would involve players emotionally, as the development team had the atmosphere portrayed by the 1979 epic war film Apocalypse Now in their mind. The team also took a company trip to Thailand and wanted to convey the mood of the country's scenery with the backgrounds, with Yuge stating that the decision of scrolling said backgrounds left and right was to immerse players more with the game's world, though he expressed desire in making stages longer.

Flying Shark was also the first project by Toaplan to make use of the Motorola 68000 microprocessor and due to the improved hardware, it allowed the team with displaying more sprites on-screen, but the increased hardware also brought issues such as difficulties with making FM sounds and enemy planes aiming their shots at players more accurately. The team wanted to make a title where players could clear it via tricks and knowledge accumulated through gameplay. When asked about the increasing bullet speed and starting at the second stage during higher loops, Uemura claimed that this design choice was made due to the first stage being made for beginning players and that the bullet speed would return to normal after reaching an overflow. Despite being published by Taito, Uemura stated that the publisher allowed them to reveal the project was made by Toaplan.

According to Tatsuya Uemura, Flying Shark proved to be more popular than Twin Cobra and was "the biggest" hit for Toaplan. In Japan, Game Machine listed it on their April 15, 1987 issue as being the fourth most-popular arcade game of the month. It went on to become Japans's second highest-grossing table arcade game of 1987 (below Arkanoid) and fourth highest-grossing arcade conversion kit of 1988.

Commodore User's Nick Kelly gave the coin-op a 9 out of 10 score. Computer and Video Games's Clare Edgeley gave an overall positive outlook to the arcade original. Sinclair User's Tim Rolf stated that "it is difficult, but Taito has made it so awesomely playable that the difficulty is a real joy". In contrast, Teresa Maughan gave a more mixed outlook to the arcade version.

A sequel, titled Fire Shark (known in Japan as Same! Same! Same!) was launched in 1989.

Its main character, Schneider, later re-appears in Batsugun. In more recent years, the rights to Flying Shark, its successor and many other IPs from Toaplan are now owned by Tatsujin, a company named after Truxton's Japanese title that was founded in 2017 by former Toaplan employee Masahiro Yuge, and is part of Embracer Group since 2022.