History VideoGame / BulletHellMonday

''Bullet Hell Monday'', or ''Danmaku Getsuyōbi'' (弾幕月曜日) in Japanese, is a series of [[VerticalScrollingShooter Vertical-Scrolling Shooters]] by Creator/MasayukiIto, originally developed for [[UsefulNotes/IOSGames i(Pad)OS]] and UsefulNotes/{{Android|Games}} mobile devices, before later being released on UsefulNotes/{{Steam}} for play on Windows PC and Steam Deck.

* CommonHTTPStatusCode: In the original game's Steam port, [[spoiler:after beating the FinalBoss on Normal or higher, the game freezes, and then flashes an "ERROR -- CODE: [=BHM403=]" message, as in a "403 Forbidden -- You don't have permission to access this asset", before summoning the TrueFinalBoss. Additionally, [[EveryTenThousandPoints point-based extra lives]] are disabled for this fight, represented by the "points until next extend" gadget being replaced with "BHM 503 EXTEND UNAVAILABLE", as in "503 Unavailable -- the service is unavailable at this time."]]

* EveryTenThousandPoints:

* TrueFinalBoss: The Steam port of the original game and ''Black'' [[spoiler:feature one last boss fight at the end of an all-stages run (i.e. it will not appear if you just play Stage 5 by itself), all set to SadBattleMusic as the sound effects cut out]]. In the original game, [[spoiler:your multiplier is reset back to 0% and you have to gain it back, [[EveryTenThousandPoints extra lives]] are locked out, and the boss does not have a healthbar -- [[HoldTheLine you have to hold out until it self-destructs]]]]. In ''Black'', [[spoiler:your SP abilities' gauges are greatly boosted]].

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* {{Cap}}: The maximum multiplier is 9,999.9%, which can be gained on certain stages, or more easily in [[EndlessGame Extra stages]].

** In the mobile version of ''Finale'', you can spend real-world money instead of AP to immediately unlock new weapon types or fully upgrade them. Averted in the Steam release, which is a completely FreewareGame.

* EveryTenThousandPoints: In Challenge Mode of the original game and in ''Black'', you gain an extra life every set number of points. The exact amount depends on whether you're playing the mobile or Steam version in the original game, and the difficulty in ''Black'' (the higher the difficulty, the more points needed). In the orignal game's Steam version, [[spoiler:extra lives are disabled during the TrueFinalBoss fight -- "BHM [[CommonHTTPStatusCode 503]] EXTEND UNAVAILABLE".]]

The third and final game in the series, released in 2020 for mobile and on September 3, 2023 for Steam.

* EmbeddedPrecursor: ''Black'' features the five Challenge stages from the original game, but with ''Black''[='=]s mechanics. [[spoiler:It does not feature the TrueFinalBoss of the original game's Steam version, however.]]

''Bullet Hell Monday'', or ''Danmaku Getsuyōbi'' (弾幕月曜日) in Japanese, is a series of [[VerticalScrollingShooter Vertical-Scrolling Shooters]] by Creator/MasayukiIto, originally developed for [[UsefulNotes/IOSGames i(Pad)OS]] and UsefulNotes/{{Android|Games}} mobile devices, with two of the games later released on UsefulNotes/{{Steam}} for play on Windows PC and Steam Deck.

The third and final game in the series, released in 2020 for mobile.

Unlike the first two games, this game has no Challenge mode.

** In ''Finale'', you can spend real-world money instead of AP to immediately unlock new weapon types or fully upgrade them.

* GoldenEnding: In the PC version of ''Black''. [[spoiler:After defeating the TrueFinalBoss of IF mode, it seems as if your ship is going to be destroyed just like in Black mode's ending...but then it shifts off the bottom of the screen before zooming back upwards as the screen [[FadeToWhite fades to white]] to the tune of the True Chapter 5 theme, as if you survived this time.]]

* BittersweetEnding: Completing an all-stages run of ''Black''[='=]s Black [[spoiler:or Black IF]] stages [[spoiler:ends with not only the TrueFinalBoss being destroyed, [[TheHeroDies but also the player's ship]].]]

* GoldenEnding: In the PC version of ''Black''. [[spoiler:After defeating the TrueFinalBoss of IF mode, it seems as if your ship is going to be destroyed just like in Black mode's ending...but then it shifts off the bottom of the screen before zooming back upwards as the screen [[FadeToWhite fades to white]], as if you survived this time.]]

* TrueFinalBoss: The Steam port of the original game and ''Black'' [[spoiler:feature one last boss fight at the end of an all-stages run, all set to SadBattleMusic as the sound effects cut out, and which require a 1-credit run up to the FinalBoss on Normal difficulty or higher]]. In the original game, [[spoiler:your multiplier is reset back to 0% and you have to gain it back, [[EveryTenThousandPoints extra lives]] are locked out, and the boss does not have a healthbar -- [[HoldTheLine you have to hold out until it self-destructs]]]]. In ''Black'', [[spoiler:your SP abilities' gauges are greatly boosted]].

* EveryTenThousandPoints: In Challenge Mode of the original game and in ''Black'', you gain an extra life every set number of points. The exact amount depends on whether you're playing the mobile or Steam version in the original game, and the difficulty in ''Black'' (the higher the difficulty, the more points needed). In the orignal game, [[spoiler:extra lives are disabled during the TrueFinalBoss fight -- "BHM [[CommonHTTPStatusCode 503]] EXTEND UNAVAILABLE".]]

* EarnYourHappyEnding: In the PC version of ''Black''. [[spoiler:After defeating the TrueFinalBoss of IF mode, it seems as if your ship is going to be destroyed just like in Black mode's ending...but then it shifts off the bottom of the screen before zooming back upwards as the screen [[FadeToWhite fades to white]], as if you survived this time.]]

* FlawlessVictory: The game tracks [[NoDamageRun no-damage]], no-bomb, and [[BreadEggsBreadedEggs no-damage-no-bomb]] badges for each stage, and these are tracked independently of high scores.

* Cap: The maximum multiplier is 9,999.9%, which can be gained on certain stages, or more easily in [[EndlessGame Extra stages]].

* ScoreMultiplier: Destroying enemies adds to your multiplier, with the multiplier gain being higher the stronger the enemy is and the faster you kill it. There's also a Score Multiplier ''Multiplier'': Destroying enemies with a bomb or the ''Blade'' or ''Homing Laser'' SP abilities awards double the multiplier gain, destroying enemies while Spark is active awards 1.5 times the multiplier gain, and destroying enemies with a bomb, Blade, or Homing Laser while Spark is active awards triple.

* GenreShift: Not the games, but rather their soundtracks. Whereas the original game's soundtrack is mainly trance, ''Black''[='=]s soundtrack is a {{Eurobeat}} remix thereof.

* LongSongShortScene: The original game's Challenge mode Stage 5 lasts about 30 seconds before sending the FinalBoss after you. However, the stage theme is 1 minute and 22 seconds long.