

Developed by Konami for Ultra Games.
Nemesis is an Action game, developed by Konami and published by Ultra, which was released in Japan in 1990.
Nemesis (ネメシス Nemeshisu) is a 1990 shoot 'em up video game developed and published by Konami for the Game Boy, and part of the Gradius series, released for the Game Boy in 1990. Similar to Taito's Sagaia, this game uses a once-international title for an earlier game in the series to represent a mostly original project. A sequel, Nemesis II, was released for the same platform in 1991. Both games were later re-released through the Konami GB Collection series, where they are titled Gradius and Gradius II instead.

Shooter / Action / Science fiction
Gradius Collection is a compilation of five beloved games in the Gradius series available for the first time on the PSP system. Spanning more than 20 years, the five games--Gradius, Gradius II, Gradius III, Gradius IV, and the long-awaited Gradius Gaiden--deliver hours of classic 2-D shooting action on the go.

Shooter / Arcade / Action / Science fiction
The Director General of Space Science Agency Dr. Venom was exiled to Planet Sard for a failed coup d'état. In the year 6665, he escapes and invades Planet Nemesis and the seven planets it controls with the help of Bacterion. The Nemesis High Council sends James Burton, ex-pilot of the Vic Viper, to pilot Metalion and attack Dr. Venom and the Bacterion invaders.

Shooter / Arcade / Action / Science fiction
Vulcan Venture (also known as Gradius II: Gofer no Yabo) is a side-scrolling shoot ’em up developed by Konami and released in arcades in 1988. Players control the Vic Viper spacecraft as it battles the Bacterion Empire, now led by Gofer. The game builds on the original Gradius by retaining the power-up bar system while introducing selectable weapon configurations and expanded abilities such as different missiles, double, and laser options. It also incorporates elements from Salamander (Life Force) and introduces a stage focused entirely on consecutive boss encounters.

Shooter / Action / Science fiction
In the darkest reaches of infinite space, pure evil lies in wait ... The Dark Forces led by the god of destruction, Bacterian, prepare to launch a massive onslaught against the planet Gradius. Possessing unstoppable power, the Dark Forces threaten to plunge the Universe into total war and complete annihilation. Their invasion force smashes the Gradius defenses, and the surrounding planets soon fall like dominoes. Now Bacterian's evil grasp reaches for the heart of the resistance...planet Gradius itself... To counter the oncoming threat the United Gradius World Forces gather all their fighter craft. Half of them form a defensive net - the other half a strike team. But they are badly outnumbered and The Dark Forces easily tear through their thin frontline. No fighters survive the slaughter.... In a last gasp move, the United Gradius World Forces send out two fighters, previously considered too dangerous for combat missions: The InterDimensional VIC VIPER fighters. The Fighters take off for the heart of darkness to join the fray that will decide the fate of the Universe...

Shooter / Action / Science fiction
Gradius: The Interstellar Assault retains the traditional horizontal scrolling gameplay from the Gradius series. Once again the player takes control of the Vic Viper and flies through five different stages destroying Bacterion's army. The game retains the traditional power-up bar from the original Gradius. The player can speed-up multiple times, use missiles, shoot double firepower or lasers, use several options at a time and use the classic shield (although it is referred to as a forcefield). However, before each game is started or continued, the player is given a "Weapon Select" screen. Here the player can choose between one of three settings for the missiles, double firepower, and lasers.

Shooter / Arcade / Action / Science fiction
Gradius IV is the fourth arcade installment in a series of scrolling shooter video games developed by Konami Computer Entertainment Tokyo. It was preceded by Gradius III, released in 1989, although spinoffs had been released prior to it such as Gradius Gaiden. This title brings a considerable graphical upgrade, particularly with the use of colored lighting. In addition, there have been several additions and removals to the vaulted weapons system; specifically, the edit mode has been removed and an online ranking system was added.

Shooter / Action / Science fiction
Gradius Gaiden is a horizontal scrolling shooter set between Gradius III and Gradius IV that includes ships and weapons new to the series. It is the first Gradius-named title to incorporate 3D graphics

Shooter / Arcade / Action / Science fiction
NOTE: "Darius Plus" is the TurboGrafx-16 PC-Engine port of the original Darius produced by Bits Laboratory and NEC Avenue. This is a different port than the title "Darius+", which was published by The Edge and developed by Softek for the Amiga, Atart ST, and ZX Spectrum. Amidst the clutter of arcade shooters in the late 1980s, companies needed to make their games stand out in some way. Simply flying a ship into outer space simply wasn't going to cut it anymore. Taito had an idea. Yes, there was still a spaceship. And yeah, that "outer space" part was still there too. But instead of the usual aliens, you fought fish. Yes, fish. Not even regular, aquatic fish, but robotic fish with lasers equipped to their fins, giant metal teeth and missiles firing from their gills. And not just fish either. There are squid, snails, and other undersea variations out for your blood as well. The requisite plot is about the people of the planet Darius, who are being terrorized by said intergalatic fish. Only the heroic pilots Proco Jr and Tiat Young can save the day. The constant star of the Darius series is the Silver Hawk. Much like Gradius, it has a primary, forward firing weapon, along with bombs that can be used to attack vertically, and the usual shield. The arcade game Darius games also used a unique system that attached three monitors together to create one massive horizontal playing field (also used in Taito's Ninja Warriors.) Naturally, this couldn't quite be replicated on the console system, so that nifty little gimmick is lost, but emulators can still replicate the dimensions of the screen, even if you end up looking at a tiny picture. Looking to further set itself apart from the crowd, every Darius game has multiple levels, with several branching paths throughout the game. It adds tremendously to the replay value, especially since there are usual multiple endings, depending on which final zone you end up at. Darius is a two-dimensional horizontally scrolling shoot 'em up set in a fictional future. Uniquely among shoot 'em ups, the game's screen was three times wider than conventional size, and the arcade cabinet used an arrangement of three screens to accommodate it. The player controls an ornate fighter spacecraft, named the Silver Hawk, and must navigate through scrolling terrain while battling a variety of fighter craft, ground vehicles, turrets, and other obstacles throughout the game's stages (referred to as zones in the game). The ship's arsenal consists of forward-firing missiles, aerial bombs and a protective force field, all of which can be upgraded by power-ups (in the form of large, colored orbs) that are dropped by specially-colored enemies throughout the game's zones. When the player reaches the end of a zone, a boss appears, which must be defeated to proceed. Once the boss of a zone is destroyed, the player is given a choice of which zone to play next via a branching path. While there are 28 zones in total, only seven can be played in a single run. When various ports of it were made for different consoles, Taito (and others) were forced to shrink the playfield to fit on one screen. The PC Engine saw three releases: - Darius Alpha (1990): A very rare beta release. This is one of the rarest Hu-Cards ever published. You could only get a copy of this hardcore shoot-em-up by buying Darius Plus and Super Darius and then mailing coupons to the publisher. 800 copies were made available, and names were drawn from those who mailed their info in. Some copies of the game were also given away as prizes by PC Engine Gekken and Marakatsu magazines. - Darius Plus (1990): The full game itself, again a PC Engine HuCard. The bosses that were removed in Alpha do not return here. Both Alpha and Plus were actually written for the PC Engine SuperGrafx and playing them on that console results in slightly improved graphics (less flicker and slowdown). - Super Darius (1990): A conversion of Darius for the PC Engine's Super CD-ROM, very close to the original arcade version other than being single-screen. Features new bosses, as well as a "boss rush" mode.