->''"Now that it's done....''\\
''I've begun to see the reason why we are here."''

''Radiant Silvergun'' is a vertical scrolling shooter by Creator/{{Treasure}}, [[NoExportForYou released exclusively in Japan]] for the arcades (on the Sega Titan-Video hardware) and on the UsefulNotes/SegaSaturn in 1998. It was [[UpdatedRerelease ported to]] UsefulNotes/XboxLiveArcade [[RemadeForTheExport internationally]] on September 14, 2011.

The gameplay is rather unique, allowing various combinations of three buttons to fire any of ''seven'' weapons at any time, as well as a charged attack. Weapons gain in strength as you score points with them, and destroying a chain of enemies that have the same color gives higher and higher bonuses as the chain continues. Thus, you'll need to use a variety of attack methods to level up evenly, as well as NOT destroying enemies of other colors so as to not break the chain. Failure to do results in a near {{Unwinnable}} scenario against the FinalBoss, as underleveled weapons are ineffective and rendered useless. The game is designed so that there is almost always a 'right' weapon for any situation. Like previous Treasure games, ''Radiant Silvergun'' concentrates heavily on boss battles. The bosses in the game are designed so that they have multiple 'sections' which, if all destroyed before the 'core' of the boss, will award the players with point bonuses. Being able to apply the right weapons on any different boss is key to obtaining these bonuses. The infamous boss warning screen appears about two dozen times and bosses take numerous different forms to try to annihilate the player.

The story is rather bleak and depressing: a strange crystalline structure called the Stone-Like is found in an ancient ruined city, and then proceeds to [[TheEndOfTheWorldAsWeKnowIt kill everyone on Earth]]. The player takes control of a pilot in a small crew that escaped the Stone-Like's blast, helming the eponymous Silvergun and returns to the planet to discover the secrets behind the artifact. [[FromBadToWorse Things are just getting worse from this point on]].

See also ''VideoGame/{{Ikaruga}}'', the SpiritualSuccessor to ''Radiant Silvergun''. Not to be confused with ''Videogame/RadiantHistoria'' or ''Videogame/RadiataStories''.

!!Tropes used in Radiant Silvergun:
* ActionBomb: Kamikaze ships that hurl towards the player in stage 5A, [[spoiler:not to mention the Silverguns on the Penta after exhausting all their other attacks on the player]].
* AfterTheEnd: The game begins with the Stone-like causing the apocalypse, with only 4 people managing to survive.
* AirborneAircraftCarrier: Tetra [[spoiler: and its doppelgänger Penta]].
* AllThereInTheManual: There's additional backstory in Igarashi's journal, which put more focus on the researchers' findings. As it turned out, in addition to the Stone-Like and the Creator robot, the prehistoric layer contained what appeared to be ruins that seemed too technologically advanced for the time period. [[spoiler:Coincidentally, HQ is built ''right on top of it.'']]
* AnachronicOrder: Stage progression is as follows: Stage 3 (Return) -> Stage 2 (Reminiscence) and/or Stage 4 (Evasion) (depending on version) -> Stage 5 (Victim) -> Stage 6 (Stone-Like) -> [[spoiler:Stage 1 (Link)]]. The numbers indicate their chronological order.
* ApocalypseHow: The game ''opens up'' with a ApocalypseHow/{{Class 6}} example by the Stone-like. Four humans manage to survive it. [[spoiler:Until the end of the game.]]
* ApocalypticLog: [[spoiler:All of the ship's logs are this after the ending.]]
* AttackDrone: A few bosses have them.
* BigBad: The Stone-Like.
* BossBonanza: Generally speaking, ''half the entire time spent'' in a typical playthrough is made up of boss fights, but Stage 6 is particularly loaded with bosses.
* BossOnlyLevel: Stage 6 (in the arcade version) is nothing but a fight against [[spoiler:Xiga]]. Stage 1 (in ''every'' version) is [[spoiler:a [[HoldTheLine "fight"]] against the Stone-like.]]
* BossSubtitles: Complete with GratuitousEnglish to give nonsensical advice in place of the nonsensical move lists of ''VideoGame/GunstarHeroes''! Considering the Stone-Like's [[SurprisinglyGoodEnglish understandable English]], though, the {{Engrish}}y advice is likely [[RuleOfFun intentional]].
* BossWarningSiren: The game has the entire screen taken over with the word "WARNING", as well as the warning "NO REFUGE" and the memetic "BE ATTITUDE FOR GAINS" before every boss fight.
* BulletHell: It has its moments, but the pace is somewhat slower than your typical shooter of this level.
* ButWhatAboutTheAstronauts: The Tetra's barely able to escape to an orbit around the Earth at the end of Stage 2. Stage 3 starts with them returning to Earth after a year because they had exhausted their food and energy supplies.
* ChainReactionDestruction: When the core part of the boss goes down, they make sure that they will go down with more than one explosion.
* ChargedAttack: The ''collect'' type.
* ClimaxBoss: Most notably the second boss in Stage 5.
* CombiningMecha: LUNAR-C boss is composed of 3 different parts which join after some time.
* ContinuingIsPainful: Continuing preserves your score and weapon levels...however, this will invalidate your score when you go to the ranking screen.
* CoolShip: Silverguns are equipped with a total of seven weapons. ''At all times''. You're gonna need them.
* DepopulationBomb: Seen in the end of Stage 2.
* DoesThisRemindYouOfAnything: The home console version's [[http://web.archive.org/web/20080419104927/http://www.emuxhaven.net/~silver/Link%20Stage%20Explanation.html Stage 1]] dialogue is intentional symbolism for [[spoiler:ExecutiveMeddling between game retailers, developers, and publishers, with hardcore gamers caught in the middle]].
* DownerBeginning: Nothing like ''the annihilation of all life on Earth'' as part of the game's backstory and console-exclusive introductory cutscene!
* DownerEnding: [[spoiler:All of humanity dies, and the GroundhogDayLoop the Stone-like enacts is implied to be more of an EternalRecurrence.]]
* DualBoss: Golets brothers; when flying through tunnels at high speed, the second one will periodically join in.
* EasierThanEasy: The console ports have a "Very Easy" difficulty. Which, unfortunately, can be described as "still NintendoHard".
* EnemySummoner: The Walker mid-boss in Stage [=4E=].
* EnergyBall: You and the enemies can fire out these.
* {{Engrish}}: "BE ATTITUDE FOR GAINS" is but the most widely known example.
* EvilElevator: [=UE2A-GAL=], the boss at the end of Stage 2. It has the ability to replace its parts as soon as you destroy them.
* EveryTenThousandPoints: Lives can be gained by getting a lot of points.
* EverythingsBetterWithSpinning: The dodecagon [=DAIKAI10=], the centipede [=DAN-564=], the walking fortress [=CA2-EKZO=], and Xiga, the ''avatar of divine wrath''.
* [[EverythingsEvenWorseWithSharks Everything's Even Worse With Sharks]]: Varas, a mechanoid shark.
* ExcusePlot: Unusually [[AvertedTrope averted]] for a Creator/{{Treasure}} game. It's still mostly in the background, but the plot is far more fleshed out than those in their other games. How else could it be so [[FromBadToWorse downright]] [[DownerEnding depressing]]?
* {{Fireballs}}: Some of the enemies and bosses can fire these. For an example, the first boss.
* FlashOfPain: Enemies, many objects and bosses flash white when hit.
* FlunkyBoss: A lot of the bosses have normal enemies or enemies specific to them accompanying them. The first boss in stage 5 has the most of them.
* FrickinLaserBeams: Many bosses fire these.
* GameplayAndStorySegregation: If (or "when", if you're playing Saturn mode) you go to Stage 2, you flash back to 1 year before the events of Stage 3 (the previous played stage). Somehow, your weapon levels and lives remaining go back with you in time.
* GhostPlanet: Stages 3-6. [[EverybodysDeadDave EVERYONE except the group on the Tetra dies when the Stone-Like goes berserk]].
* TheGoomba: Drones: they're small, they're weak, they don't attack much (unless on very hard difficulty) and they're everywhere. They're mainly used to get the chain meter high and to collect pink bullets.
* GratuitousEnglish: Used deliberately in the BossSubtitles, to contrast the impeccable English of the Stone-Like.
* HoldTheLine: The FinalBoss cannot be harmed at all; you have to survive its attacks for 60 seconds.
* HomingProjectile: You can fire these, enemies can fire these.
* HotBlooded: Guy [[spoiler: to the point where he kamikaze-attacks the Stone-Like.]]
* HundredPercentCompletion: When destroying bosses bit by bit instead of hitting their weak spot first, you'll get an extra destruction bonus.
* KillEmAll: The game '''starts''' with a cutscene of this happening to Earth.
* LaserBlade: The Radiant Sword.
* LastStand: The entire game is one against the Stone-Like. [[spoiler:It doesn't work. The best that happens is giving humanity another shot via StableTimeLoop. [[GroundhogDayLoop Again and again.]]]]
* MeaningfulName: Creator's name is both a reference to [[spoiler: what he does at the end of the game]] and [[spoiler: that he's an AuthorAvatar of the game's designer, Hiroshi Iuchi]].
** Most of the boss names also mean something, slyly disguised as random letters and numbers:
*** [=UE2A-GAL=] - ''Ue ni Agaru'' ("Going Up")
*** [=NASU=] - ''Aubergine'' (Eggplant)
*** [=DAIKAI10=] - ''Daikaiten'' ("Giant Spin")
*** [=DAN-564=] - ''Dango Mushi'' ("Pillbug")
*** [=CA2-EKZO=] - ''Kani Ekzo'' ("Crab Ekzo")
*** [=SBS-133=] and [=SBS-33KI=] - ''Space Battle Ship''
* MarathonBoss: When you fail to get combos and upgrade your weapons, you'll be fighting some of the later bosses and especially the FinalBoss for a long time.
* MirrorBoss: [[spoiler: Penta and its Silverguns, which use modified versions of your own attacks]].
* NewGamePlus: Over the course of the game, the Silvergun's weapons level up as more points are earned. Saturn Mode in the Saturn version (or Story Mode in the XBLA version) of the game saves these levels and lets you start the game over again with them. Eventually, you'll be able to start the game from the beginning with maxed-out weapons. On the downside, you have limited continues (initially none at all), and have to unlock more by playing Arcade Mode. (The XBLA version changes this to no continues ''at all'', with playing Arcade Mode giving you more lives on your single credit instead.)
* NintendoHard: Oh ''lawd'', is this game TERRIFYINGLY hard. If you're not a hardcore gamer, setting the difficulty to easiest is a must, and even then the game carries no mercy. In most shmups, players tend to use their first continue by the time they reach the second stage. In this game? By the time most players come out of [[AnachronicOrder Stage 3]], the digit in the score that tracks the number of continues used is already maxed out! And let's not get started on the chain scoring system...
* OutOfOrder: In-universe example. In the scene during which the Stone-Like's explosion destroys the world occurs at exactly 9:38 PM according to one scene in the game. However, in Stage 2 (which took place on that same day,) the player does not reach the beginning of Stage 2E until 9:58 PM, exactly 20 minutes AFTER THE EXPLOSION SUPPOSEDLY TOOK PLACE. The player still has a little ways to go by this point until the end of the stage, too.
* ThePhoenix: Ohtrigen, only in the Saturn version.
* PlotlineDeath: [[spoiler:At the very end, the last two humans die.]]
* PoorCommunicationKills: The BossSubtitles actually ''do'' provide useful information about the boss you're about to encounter, but it's intentionally made so cryptic the average gamer won't figure it out before the fight...or even far after the fact. That is, until you hit the FinalBoss, where you get three easy-to-follow hints:
--> 1. [[ThisIsGonnaSuck Be Praying]]\\
2. [[OhCrap Be Praying]]\\
3. [[RuleOfThree Be Praying]].
** As an example, take the boss [=DAN-564=], which is a giant pillbug. One of the items listed is a move name, "6464-q". The Japanese often use numbers (and letters, here) to represent certain words or sounds: "64" is shorthand for "mushi" or "bug"; "q" in this case means "kyuu" or "ball". You know it's coming, but [[HappyFunBall do not taunt Bug Bug Ball]].
* RecurringRiff: Almost every song in the soundtrack uses the same recognizable motifs; those of "Feel Invisible Matter" and "The Stone-like".
* RoarBeforeBeating: [=NASU=] (the robotic snake) roars before battle.
* ScoringPoints: Killing 3 enemies of the same color results in "chain" bonuses, which get higher as you score more successive chains. However, unlike in ''VideoGame/{{Ikaruga}}'' (which at least has the mercy to let you change colors between chains), shooting a single enemy of a different color will result in losing your chain. Ignoring this trope is ''not'' recommended, as your weapons need points to level up, and if you are scoring poorly, your weapons will become outdated by the later stages.
* TheScourgeOfGod: The Stone-Like, but it's also pretty close to a [[GaiasVengeance Gaia's Avenger]] because [[spoiler:after everyone else dies, Creator tells the player that not only is the Stone-Like the guardian of Earth, it ''is'' the Earth]].
** For those who thought the Stone-Like's actions [[{{Hypocrite}} hypocritical]], keep in mind that [[spoiler:it's said to be the guardian of ''Earth'', ''not'' the guardian of ''humanity'']].
* SenselessSacrifice / StupidSacrifice: [[spoiler:Guy's attempt to destroy the Stone-Like at the end of Stage 5]].
* SentryGun: A few types of enemies are wall turrets.
* SequentialBoss: Many! There's also different variations of sequential bosses, too. For example, all the components of [=UE2A-GAL=] except the core are sequential.
* ShootTheShaggyDog: [[spoiler: Pretty much the entire game was all for naught.]]
* ShoutOut: Most bosses in Radiant Silvergun are a reference to something else. [[spoiler: It goes hand in hand with the EternalRecurrence and {{Subtext}} commentary on the state of the gaming industry; some of these bosses are implied to both be man-made creations from previous cycles as well as other gaming titles]].
** The Gallop you face off against in Stage 3C is a direct reference to the ''VideoGame/RType'' series. The name references ''Armored Police Unit Gallop,'' which is set in the series and takes place around ''R-Type Delta''. Gallop itself has three {{Attack Drone}}s that behave just like the Force Device and Bits (and that includes ''[[RammingAlwaysWorks launching the "Force" at you!]]''), as well as a WaveMotionGun like the R-Type fighters.
*** Makes you wonder about the BossSubtitles, doesn't it? "[[UnCanceled Anxious for return]]" of the R-Type series?
** Xiga is, oddly enough, [[spoiler:''Series/{{Ultraman}}'']].
** Guy has more than a passing resemblance to another [[spoiler:[[Anime/MartianSuccessorNadesico hot-blooded dead Gai]]]].
* SinisterGeometry: The Stone-Like.
* SkippableBoss: W(--)W in the Saturn version.[[note]]Yes, that boss' official name is W(--)W.[[/note]] However, beating it can reward the player with bonus points.
* SmallNameBigEgo: Guy. This explains it all:
-->'''Igarashi''': On other matters, I recall that today is the last day of your tests! Our superiors have placed a lot of expectations on these new models, so ''please'', do your best!\\
'''Guy''': *tsk tsk tsk* C'mon, pops, you don't need tests if you've got the guts!\\
'''Igarashi''': So, Tengai, just how ''is'' my son doing on the tests?\\
'''Guy''': *screams in anguish*
* SpreadShot: A large part of your arsenal.
* SpritePolygonMix: Ships, smaller projectiles, smaller enemies and lots of background is rendered in 2D while the rest of the background, larger enemies, larger projectiles and bosses are rendered in 3D.
* StationaryBoss: Many bosses.
* StarfishLanguage: When the Stone-Like appears in-game for the first time, its "speech" is portrayed as a series of unintelligible noises.
* SuperPrototype: The Silvergun fighters.
* TankGoodness: Large tank miniboss in Stage 2.
* ThirteenIsUnlucky: The events of the game take place on July 13th.
* ThisIsGonnaSuck: Every boss in Radiant Silvergun (well, maybe except for the first boss) is preceded by a warning screen with three pieces of cryptic advice. The advice for the FinalBoss is to simply ''pray'', repeated three times.
* TimeLimitBoss: Bosses will self-destruct if the player spends too much time fighting them, resulting in less points. See HoldTheLine for an inversion.
* TransformingMecha: Second Golets can be seen transforming from a high-speed vehicle into a wider one. [=DAIKAI10=] seems to change itself between being a cross or being a dodecagon. There are also other bosses which change their shape.
* TurtlePower: Bechew. It ''will'' [[{{Pun}} bea-chew]] up.
* {{Unwinnable}}: If you don't power up quickly enough in the early stages, don't expect to be able to win without exhausting all of your continues. If your weapons are low-leveled at the end, you'll just have to survive as long as possible against the bosses until they self-destruct, especially the FinalBoss.
* UpdatedRerelease: One of Microsoft's Tokyo Game Show 2010 announcements was an XBLA remake. There was much rejoicing... except from those hoping to [[CrackIsCheaper invest in legit Sega Saturn copies]].
** Among other obvious additions, there was an extra option thrown in for those that had [[VideoGame/{{Ikaruga}} Ikaruga's]] XBLA rerelease and got any achievement in it: The ability to use Ikaruga's multi-color chain system instead of being forced to always hit the same color to sustain a chain, although to compensate, the maximum chain only gives you 25600 points per enemy, as opposed to 100k you can get with the normal chains.
** Unfortunately, the Options+ menu (which let you make hitboxes visible or alter the Silvergun's speed) was lost in the mix -- even after ninety hours of play, people haven't been able to make it appear. Another issue is that the game is presented in a 16:9 pillarboxed screen, even on non-16:9 displays, resulting in a significantly reduced game window -- a problem for players who don't have [=HDTVs=] or want to play on a CRT.
* WarmupBoss: The first boss, [=AKA-O=]. Well... except when playing on the hardest difficulty, in which case it's a WakeUpCallBoss and can easily kill any unsuspecting player.
* WaveMotionGun: Many bosses have that.
* WeaponizedExhaust: Penta briefly uses these.
* WhereItAllBegan: Two instances:
** The return to the Earth Defense Army Headquarters during Stage 5, where the Stone-Like unleashed its DepopulationBomb in Stage 2.
** A ''broader'' one happens in [[spoiler: Stage 1, where you are sent back in time ''100,000 years'' by the Stone-Like. Not so coincidentally, this is roughly when modern humans, genetically speaking, first appeared]].