Batsugun

Batsugun is a science fiction-themed vertically scrolling bullet hell game where players assume the role of one of the six Skull Hornets pilots taking control of their respective fighter jets through five increasingly difficult levels in a last-ditch effort to overthrow a global takeover led by the army of king Renoselva A. Gladebaran VII as the main objective. The title initially appears to be standard; players control their craft over a constantly scrolling background and the scenery never stops moving until a boss is reached. Players also have only two weapons at their disposal: the main gun that travels a max distance of the screen's height and three bombs capable of obliterating any enemy caught within its blast radius.

A unique gameplay feature is the weapon system; as enemies are destroyed, players gain experience points that are separate from the score and for every experience points gained, the main gun is leveled up and becomes much stronger. This is analogous to exp and levelling up in role-playing games. The weapon can only level up twice and after achieving its maximum level, experience points will grant players an extra bomb stock instead. In addition, player can also grab "P" icons to increase the power of the current level gun.

The plot summary of Batsugun is explained through supplementary materials. On a distant planet similar to Earth, a global takeover codenamed Epsilon Plan led by king Renoselva A. Gladebaran VII is set into motion, with the Imperial Army successfully staging multiple coup d'états upon countries of the planet in less than two weeks. All that stands between the military forces of Renoselva and world domination are the Skull Hornets: a squadron of fighter pilots led by prince Olisis R.

Gladebaran VIII, son of Renoselva. The Skull Hornets utilize the most powerful submersible jets the planet's scientists have ever devised.

Batsugun was created by most of the same team that previously worked on several projects at Toaplan such as Grind Stormer and who would later go on to join one of its offshoots after the company declared bankruptcy in 1994 to continue working in the bullet hell sub-genre. Its development was helmed by a small group at the company and most of the members had several roles during this process, with Fire Shark designer Yuko Tataka acting as both producer and co-designer alongside artists Junya Inoue and Takeshi Kawamoto. Cave co-founder Tsuneki Ikeda served as one of its programmers prior to DonPachi alongside Satoshi Kōyama, Seiji Iwakura and composer Yoshitatsu Sakai. Both Ikeda and Inoue have stated that several games from other companies that were popular at the time served as influence early in development.

Batsugun was met with positive reception during its initial release in arcades. In Japan, Game Machine listed it on their February 1, 1994 issue as being the seventh most-popular arcade game at the time. In the April 1994 issue of Japanese publication Micom BASIC Magazine, the game was ranked on the number nine spot in popularity. Gamest simultaneously awarded the title with both the 6th "Best Shooting" and 36th "Best Character '94" awards. Nick Zverloff of Hardcore Gaming 101 praised Inoue and Sakai's artwork and soundtrack respectively, among other aspects.

The Sega Saturn conversion received mixed reviews from critics such as Famitsu and the Japanese Sega Saturn Magazine. According to Famitsu, the Saturn version sold over 7,017 copies in its first week on the market. 4 out of 10 score, ranking at the number 245 spot, indicating a large popular following. Edge reviewed the Saturn version, deeming it "not a classic in designs terms, perhaps, but one that won't disappoint those yearning a show-off 2D title".

Batsugun has been regarded by multiple publications as the first manic shooter due to its evolution of complex enemy waves, bullet patterns, firepower and hitbox. Mark R. Johnson, an author at The University of Sydney in Australia, noted that its first boss unveiled a number of on-screen bullets players never witnessed before. In addition, the game was also cited as an inspiration for other titles in the shoot 'em up genre since its release such as Cho Ren Sha 68K and Eschatos.

After the initial launch of Batsugun, Toaplan would cease development of shooting projects prior to their closure on March 31, 1994. A sequel was planned but never released, although Inoue stated that the idea of gender-based firepower pairing envisionsed for the title was integrated into Progear. In more recent years, the rights to the title 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 Masahiro Yuge, and is part of Embracer Group since 2022.