Many years after the war against the terrorist @AngelicNightcore and his Japanese rebels was won, Falkia declassified their secret projects from the war. Those include:
Celestial-class Aerial Assault Vehicle: Codenamed Mongooses, these were better versions of Japan's Weasel, including better sensors, better cloaking, better defenses, higher speeds, and better weaponry (including electron beams and lasers). These were what was used in the Department of Truth trap. Falkia had 30 at the end of the war.
Neutrino-class Aquatic Assault Vehicle. Codenamed the Beaver, this is like if a Mongoose was meant to travel and fight underwater. This was made after Angelic moved to an underwater base, but never saw combat. Falkia had 1 at the end of the war.
Bioweapon: This had two forms. The first was dangerous, sure, but it also had a vaccine. Falkia deployed it against Antaria and Japan, and it killed over 100,000 Japanese citizens before Tunasia took over Japan. However, there was a second form that never saw use. This variation of the bioweapon was much more dangerous, as it spread almost instantly between people, and caused a certain death. It was never deployed.
Laser Weaponry: This was mentioned several times, but never fully declassified. Falkia had developed the technology for lasers, and secretly used it in many defense towers.
Assorted Cloaked Sea Objects: These include both motion sensors (in a full ring all around Falkia) and cloaked mines with vision sensing that were remotely activated, so they wouldn't be wasted by minesweepers.
Nukes: Falkia was mass producing 70 megaton nukes since the beginning, and had around 100-ish at the end of the war.
Genetically engineered creatures: Falkia designed three strains of these, although they all share some characteristics. All of them are roughly the size of a large elephant, breed quickly, have rudimentary intelligence (more than enough to coordinate attacks, and they can understand and follow basic commands), are completely loyal to me, are immune to most forms of weaponry (including radiation), are resistant to everything else, have heat-dispersion, and have titanium-reinforced skin and claws. The land strain has extreme speed, in excess of 80 miles per hour, and has strength greater than any other type. The aquatic strain can breathe underwater, swim quickly, can camouflage (like a chameleon) into the water, and has infrared and sonar vision. The aerial strain has wings, is capable of flying at speeds of over 100 miles per hour, has built-in bomb pouches, and has cloaking tech built into it. Falkia had several hundred thousand of each type when the war ended.
ICBMs: Falkia was mass-producing intercontinental ballistic missiles, and had around 1 million when the war ended.
Wireless Monitoring Device: This unstoppable device monitors all wireless communications, everywhere on Earth, and copies what they're saying. Seal had confirmed that this could be used to find Angelic, and it would have found him within a day of its construction (if he hadn't quit the club).
AI: Falkia was using AI tech made by the former Antarian scientists in many capacities, including defense systems and sorting through data.
The Destroyer: Made in reaction to the creation of the Survivor by Japanese rebels, this bioweapon was the deadliest thing ever invented. It does everything possible to kill the creature it inhabits, including (but not limited to) rotting their organs, preventing the flow of oxygen, causing blood clots, eating brain matter, and even turning the creature’s immune system against it. As a safety precaution, it can’t be spread from host to host. It was never deployed.
More items will be added as I recall them.