The two of them could sense that destiny had brought them together as they sized each other up. However, this was merely the prelude to the gruesome battle they would soon face...
It is Space Year ○●◎○note . Admiral Gratze of the planet Melt was assigned to conquer the Earth, when he comes across an interesting little planet, Fever. Space pilots are highly discouraged from flying near Fever, as the planet is known for electromagnetic waves that can disrupt nearby spacecraft. Gratze, thinking that to be just a little superstition, decided to try to make a little pit stop on this planet, but sure enough, his flagship's sytems were disrupted, angering him when the damage disrupted a very steamy video call with his wife Aileen.
Enraged by this incident, Gratze now sets out to instead declare war on planet Fever, with three heroes, Afro, McCoy, and Stephanie standing up to him with their Cool Starshipsnote , all of them empowered by Dance Energy!
Dangun Feveron stands out not only for its esoteric plot that doesn't care to take itself seriously, but for its unique gameplay mechanics, even compared to other CAVE games. The player is given the option to customize their loadout, with one of three different ships of varying shot width, special attacks that are performed by holding down the fire button, and the speed of their ship, which is fixed at all times (unlike, say, DoDonPachi where you can slow your ship's speed). Enemy bullet patterns are sparser than other CAVE games, but in exchange are faster, requiring the player to rely less on precision dodging and more on reflexes. Instead of trying to perform hit combos, the player is instead tasked with collecting cyborgs that fall out of enemy ships to raise their Score Multiplier, and letting any cyborgs escape off the top of the screen resets the multiplier, forcing the player to carefully balance safety with preserving their multiplier. All of this, to a wonderfully groovy disco soundtrack by Ryuichi Yabuki and Nanpei Misawa.
A Play Station 4 port and an Xbox One by M2 were released as part of the M2 ShotTriggers series of ports in 2017 in Japan and 2018 in North America. This revision features a variety of widgets that show real-time gameplay information, two new arrange soundtracks alongside a remastered version of the original, and a new Arrange Mode.
In 2017, Cave and M2 announced Feveron Gakuen, a Visual Novel spin-off for the Play Station 4 featuring humanized versions of the game's ships as high school students. The game is being directed by Yoshiyasu Matsushita and produced by Satoru Hasegawa, former SNK producers who worked on Twinkle Star Sprites and Doki Doki Majo Shinpan!. The game disappeared for two years after its announcement, only for it to be announced again in 2019, this time as Gakuen, dropping any connection to Cave's disco themed shmup, but without a release date.
Dangun Feveron provides examples of:
- 1-Up: Compared to other CAVE games, this one is very stingy with extra lives; you get only one extra life, and that's after you collect 2,000 cyborgs, which will most likely take you until Stage 4. The Fever Arrange Mode in the M2STG port alleviates this by offering an extra life after each stage, and Custom mode also lets you set extra lives to be dispensed every set number of cyborgs.
- Affectionate Parody: Of Toaplan's shooters.
- Announcer Chatter: "Bring it on day-ooown!" "You know you have to have it!"
- Arrange Mode:
- M2's Updated Re-release has the Fever arrange, which implements a "safety line" feature. Staying under this safety line will tick up cyborg value by 1 every half second, all cyborgs are auto-collected, and auto-bomb is enabled as well. To disable the safety line (but NOT its effects), stay under the safety line for the first half of stage 1, and gather 140 cyborgs before the mid-point of stage 1. Once this is done, bullet speed and quantity increase, but the effects of the "Safety line" are applied to the entire screen, bombs turn all bullets and destroyed enemies into cyborgs, a radius of attraction collects all cyborgs near your ship, and cyborgs value is doubled.
- The same rerelease has Custom mode, which is basically Create-Your-Own-Arrange-Mode. One of the presets available for it is "Speedy", which makes the enemy attack patterns more like arcade mode but has some of the conveniences of Fever mode, such as the safety line (but only for auto-bombing) and speed control by holding down shot and full-auto at the same time.
- Big "NO!": The announcer lets out a "NOOOOOOO!!" under certain circumstances, like when you get a Game Over.
- Boss Warning Siren: Every boss battle is announced with "HEAVEN IS HERE INSIDE MY SOUL!"
- Cap: You can only have up to four bombs at once.
- Charged Attack: The Roll-Type Powerful Attack is a "hold" example. By holding down the fire button, blue orbs will generate and circle around your ship, and fire ahead all at once when you release the fire button.
- Disproportionate Retribution: The whole reason Admiral Gratze waged war on the Fever planet? Because the electromagnetic waves disrupted an intimate video call with his wife.
- Excuse Plot: Intentionally, as part of the Retraux aesthetic.
- Gratuitous Disco Sequence: One of the distinguishing traits of the game, the other being that it uses the Cave Bullet Hell Shoot 'Em Up gameplay with an old-school visual style.
- Guest Fighter: UoPoko the cat.
- Guide Dang It!: Nothing in the game hints that picking a higher speed for your ship makes your hitbox larger. Thankfully this is explained in the M2STG port's manual.
- Hitbox Dissonance: Like in other CAVE games, your hitbox encompasses a small area of your ship sprite. However, the higher your ship speed, the larger your hitbox will be.
- Large Ham: The announcer. HEAVEN IS HERE INSIDE MY SOUL!
- Lighter and Softer: Compared to previous CAVE games, the game is much lighter in tone, with the story not really taking itself seriously. Instead of Super-Soldier deconstructions, evil generals trying to destroy humanity, or psychic kids with Dark and Troubled Pasts taking on an evil old woman and her private military, it's three pilots saving their planet with the power of disco from a man who's pissed over a disrupted phone sex call with his wife.
- Market-Based Title: Titled Fever SOS in some export markets.
- Never My Fault: Admirtal Gratze waged war on planet Fever for disrupting his precious video call with his wife, even though he's the one who chose to do a fly-by past the planet because he thought its electromagnetic waves were just superstition.
- Nintendo Hard: Of course, since it's an Arcade Game with all the need to make a profit that entails. Notably, rather than utilizing thick curtains of bullets like many other CAVE games, the game instead uses sparse yet lightning-fast bullet patterns that often reequire reflexes or routing a path through each stage.
- Oh, Crap!: In Time Attack mode, cyborgs will start screaming "S.O.S.!" if they approach the top of the screen (where they will disappear and reset your Score Multiplier if not collected). This warning can also be enabled in the main game in the M2STG port.
- Putting on the Reich: The evil general is putting on Imperial Japan.
- The art style is a throwback to older Shoot Em Ups such as Armored Scrum Object.
- One of the arrange soundtracks on the M2STG port is an FM arrange soundtrack that replicates the sound of early 90's and late 80's games.
- Scare Chord: A discordant piano chord plays if a cyborg escapes the screen.
- Super-Fun Happy Thing of Doom: One of the custom mode settings in the M2STG port is "Gratze's Judgement of Love". When enabled, it sets enemy bullet speed and quantities to maximum, effectively giving the game the difficulty of second loops from other CAVE games.
- Timed Mission: Time Attack mode, in which you have three minutes and infinite lives to go through a dedicated level and score as many points as possible.