History Main / BossWarningSiren

* In ''VideoGame/StarFox1'', almost all boss battles were announced by an alert sound and a short voice clip of "incoming enemy". As this was invariably near the end of each level, it occurred while the level music was fading out to be replaced with the boss battle music.

** The ''VideoGame/MegaMan1'' remake ''VideoGame/MegaManPoweredUp'' also had this, despite not being present in the other games from the classic series.

---> "WARNING -- HERE COMES THE FINAL JUDGE! [ E3 ]"\

* ''VideoGame/{{Ikaruga}}'', the spritual successor to ''Radiant Silvergun'', had a similar message: "WARNING: The big enemy is approaching at full throttle. According to the data, it is identified as . NO REFUGE".
* In ''VideoGame/StarFox1'', almost all boss battles were announced by a short voice clip of "incoming enemy". As this was invariably near the end of each level, it occurred while the level music was fading out to be replaced with the boss battle music.

* ''RayCrisis'': "GENERATING LARGE ANTIBODY: [boss name]]"

---> "WARNING -- HERE COMES THE FINAL JUDGE! [ E3 ]"

** In ''Thunder Force VI'', you get a siren and your ship's computer alerting of the boss in [[GratuitousForeignLanguage Tan]][http://tvtropes.org/pmwiki/pmwiki.php/Main/ClassicalTongue gut]], followed by the name and description of the boss, both in English and Mongolian.

* In ''VideoGame/ThunderForce IV'', a siren sounds when a boss battle is about to begin.

* In several platform games made by {{Rareware}}, such as ''VideoGame/JetForceGemini'' (also an action game), ''VideoGame/DonkeyKong64'' and ''[[VideoGame/BanjoKazooie Banjo-Tooie]]'', a boss is presented through a lengthy cutscene as onminous music plays. The buildup of the battle may be based on either the boss's slow but climatic arrival to the battle arena, or even the ''assembling'' of the boss (as in the case of Mr Patch in ''Banjo-Tooie'' and King Kut Out in [=DK64=].

[[folder:First-Person Shooter]]
* In ''VideoGame/BlakeStoneAliensOfGold'', a warning klaxon or similar signal normally sounds just before the FinalBoss in each of the six missions.
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* In ''VideoGame/{{beatmania}} IIDX'', after unlocking an Extra Stage boss song, the music select BGM will be overriden by a short loop of the boss, or a new theme altogether in ''beatmania IIDX 20 tricoro''. In some cases, the background will change accordingly. This only applies to bosses that are made available on the standard music select screen, not bosses accessed through a special "boss select" screen (e.g. ''beatmania IIDX 13 [=DistorteD=]''[='=]s Cardinal Gate or ''beatmania IIDX 16 EMPRESS''[='=]s Empress Place).

* In ''VideoGame/{{beatmania}} IIDX'', after unlocking an Extra Stage boss song, the music select BGM will be overriden by a short loop of the boss. In some cases, the background will change accordingly. This only applies to bosses that are made available on the standard music select screen, not bosses accessed through a special "boss select" screen (e.g. ''beatmania IIDX 13 [=DistorteD=]''[='=]s Cardinal Gate or ''beatmania IIDX 16 EMPRESS''[='=]s Empress Place).

* ''VideoGame/BlasterMaster'' has boss rooms that do this without the text message. The screen begins to repeatedly flash as an alert siren stops the music, before fading out the screen completely and revealing the boss. Intrestingly, you can leave the room just before the screen fades out completely.

* In ''VideoGame/MagicalDoropie'', {{Boss Only Level}}s are herald with a screen saying "ALERT!!" in big letters on a black screen flashing red. The player then appears in the level while the boss makes its entrance. When the boss's entrance is finished, a "Data File" on the boss appears, listing its name, health, strengh, speed, damage and special ability. However, in the final stage, none of the final three bosses have any alert screens or data profiles, although the siren is still heard while the final boss is materialising.

* In ''VideoGame/RunSaber'', normally an arrow appears at the top of the screen showing you which way to procede through the stage. However, when a boss is encountered, an ''ALERT!'' icon blinks there instead.

* In ''VideoGame/StarFox1'', almost all boss battles were announced by a short voice clip of "incoming enemy". As this was invariably near the end of each level, it occured while the level music was fading out to be replaced with the boss battle music.

* In ''[[VideoGame/{{Touhou}} Subterranean Animism]]'', Utsuho Reiuji, the [[ILoveNuclearPower nuclear-powered]] [[RavensAndCrows Hell raven girl]] and final boss of the game, has the distinction of prefixing each of her spell cards with klaxons while the text '☢ Caution !!☢' flares on-screen.

* The ''MegaManZero'' example below also carries over to ''SNKVsCapcomSVCChaos'', where the klaxons sound whenever Zero is about to confront any of the bosses, including Shin Akuma and Serious Mr. Karate, in the boss battles, but not against any normally playable characters.

* ''VideoGame/BlasterMaster'' has boss rooms that do this without the text message.

* In ''{{Bayonetta}}'', level 14 has the music stop and a siren resounding just before you fight {{Mini Boss}}es Courage and Temperance. Comes along with this entire ShootEmUp section being a homage to AfterBurner.

In some video games, before you fight a boss, the screen will start flashing red while the word '''WARNING!''' flashes up on the screen as the stage music fades out or stops abruptly. Sometimes, it could be a visual warning ''or'' an audio warning; it doesn't necessarily have to be both. In anycase, this lets the player know that they're about to face off against a more powerful foe.

May overlap with BossSubtitles. Related to FightWoosh and RedAlert. See also SuspiciousVideogameGenerosity.

* Played with in the remixed boss theme from ''[[Videogame/StreetsOfRage Streets of Rage Remake]]'', which begins with a sample that sounds like a siren.

* The ''MegaManZero'' example below also carries over to ''SNKVsCapcomSVCChaos'', where the klaxons sound whenever Zero is about to confront any of the bosses, including Shin Akuma and Serious Mr. Karate in the boss-battles, but not against any normally playable characters.

* All ''VideoGame/{{WarioWare}}'' titles have a sound clip whenever a boss stage is coming up next and will linger on the screen between microgames 8 beats longer than normal. There will usually (but not always) be an on-screen message telling you you're about to encounter the boss. Said sound clip varies from game to game, but ''[=WarioWare=]: Smooth Moves'''s sounds particularly like a klaxon played to a beat.

* ''VideoGame/RadiantSilvergun'' has the entire screen taken over with the word "WARNING", as well as the warning "NO REFUGE" and the memetic "BE ATTITUDE FOR GAINS" prior to every boss fight.
* ''VideoGame/{{Ikaruga}}'', the spritual successor to ''VideoGame/RadiantSilvergun'', had a similar message: "WARNING: The big enemy is approaching at full throttle. According to the data, it is identified as . NO REFUGE".