Tenkaichi otogesai

Tenkaichi otogesai (天下一音ゲ祭) were a series of collaboration tournament in Japan involving music games from KONAMI, SEGA, TAITO, and BANDAI NAMCO. In most of these tournaments, one or more tournament songs were crossed over to other participant games.

This event could only be played at AOU member arcades in Japan. Players could register at an arcade to play one of the participant games. The whole country is divided into several Blocks, each of which would include many arcades, and a Qualifying Round was held in each arcade to determinate a champion. Then, the champion of each arcade competed against the other champions of the Block, and the winner of each Block later competed in a National tournament against the each Block champion.

If a major version upgrade happened during the tournament, the tournament would continue to be held in the new version.

1st

Official website (archived)

Participant games:

• KONAMI: jubeat saucer fulfill
• SEGA: maimai ORANGE
• TAITO: GROOVE COASTER EX
• BANDAI NAMCO: 太鼓の達人 キミドリVer.

Dates:

• Online entry: October 29th, 2014
• Qualifying Round: November 23rd, 2014
• Block Tournament: December 21st, 2014
• National Tournament: February 14th, 2015 (JAEPO 2015)
• Qualifying Round songs release date: October 29th, 2014
• Block Tournament songs release date: November 26th, 2014
• Songs released for non-AOU arcades on
  • February 15th, 2015 (jubeat)
  • February 16th, 2015 (GROOVE COASTER, maimai, Taiko (JP))
  • March 7th, 2015 (Taiko (Asia), Qualifying Round songs)
  • March 21st, 2015 (Taiko (Asia), Block Tournament songs)

Each participating game has an existing song chosen as the Qualifying Round songs, and a newly-written song as the Block Tournament songs. All 8 songs, 7 of which were new to each game, are available in all games.

Game	Qualifying Round song	2nd song (playoff)	3rd song	4th song
jubeat	きたさいたま2000	Got more raves?	Garakuta Doll Play	FLOWER
maimai	FLOWER	きたさいたま2000	Got more raves?	Garakuta Doll Play
GROOVE	Garakuta Doll Play	FLOWER	きたさいたま2000	Got more raves?
Taiko	Got more raves?	Garakuta Doll Play	FLOWER	きたさいたま2000

The 8 best players from "Qualifying Attack" goes to the quarter-finals.

Contest	jubeat saucer fulfill	maimai ORANGE	GROOVE COASTER EX	太鼓の達人キミドリ
Qualifying Attack	Ignis Danse	Scars of FAUNA	VERTeX	FUJIN Rumble
Playoff 1	Got more raves?	きたさいたま2000	FLOWER	Garakuta Doll Play
Playoff 2	Garakuta Doll Play	Got more raves?	きたさいたま2000	FLOWER
Quarter-finals	FUJIN Rumble	Ignis Danse	Scars of FAUNA	VERTeX
Semi-finals	VERTeX	FUJIN Rumble	Ignis Danse	Scars of FAUNA
3rd place battle	FLOWER	Garakuta Doll Play	Got more raves?	きたさいたま2000
Finals	Scars of FAUNA	VERTeX	FUJIN Rumble	Ignis Danse
Playoff	FUJIN Rumble	Ignis Danse	Scars of FAUNA	VERTeX

2nd

Official website (archived)

Participant games:

• KONAMI: SOUND VOLTEX III GRAVITY WARS
• SEGA: maimai ORANGE PLUS → maimai PiNK
• TAITO: GROOVE COASTER 2 HEAVENLY FESTIVAL
• BANDAI NAMCO: 太鼓の達人 ムラサキVer. → 太鼓の達人 ホワイトVer., シンクロニカ

Dates:

• Online entry: October 15th, 2015 ~ November 12th, 2015
• In-person entry: October 15th, 2015 ~ Qualifying Round date of the respective arcade
• Qualifying Round: November 19th, 2015 ~ November 29th, 2015
• Block Tournament: December 19th, 2015
• National Tournament: February 20th, 2016 (JAEPO 2016)
• Last year's songs released for all arcades on
  • October 8th, 2015 (SOUND VOLTEX)
  • October 15th, 2015 (シンクロニカ)
• Qualifying Round songs release date: October 15th, 2015
• Block Tournament songs release date: November 26th, 2015
• Songs released for non-AOU arcades on
  • February 22nd, 2016 (maimai, GROOVE COASTER)
  • February 23rd, 2016 (太鼓の達人 (JP&Asia), シンクロニカ)
  • March 10th, 2016 (SOUND VOLTEX)

Inter-company song crossovers like last year did not happen. Taiko and Synchronica, both made by BANDAI NAMCO, uses each other's Qualifying Round song as the Block Tournament song.

The 4 Qualifying Round songs of last year were added to SOUND VOLTEX and シンクロニカ due to them being new to the tournament.

Game	Qualifying Round	Block Tournament
SDVX	マサカリブレイド	月光乱舞
maimai	Aiolos	Axeria
GROOVE	Solar Storm	Black MInD
Taiko	朱の旋律	夜明けまであと３秒
Synchronica	夜明けまであと３秒	朱の旋律

3rd

Official website (archived)

Participant games:

• KONAMI: SOUND VOLTEX IV HEAVENLY HAVEN
• SEGA: maimai PiNK PLUS→maimai MURASAKi
• TAITO: GROOVE COASTER 3 LINK FEVER→GROOVE COASTER 3EX DREAM PARTY
• BANDAI NAMCO: 太鼓の達人 レッドVer→太鼓の達人 イエローVer

Dates:

• Entry: October 15th, 2016
• Qualifying Round: November 19th, 2016 ~ November 27th, 2016
• Block Tournament: December 17th, 2016 (Other games), January 14th, 2017 (maimai)
• National Tournament: February 11th, 2017 (JAEPO 2017)
• Qualifying Round songs release date: October 14th, 2016
• Block Tournament songs release date: November 18th, 2016 (Other games), December 15th, 2016 (maimai)

Songs release date for non-AOU arcades

Game	Song	Release Date	Details
太鼓の達人 レッドVer →太鼓の達人 イエローVer	毒LOＣＡＮdy マサカリブレイド	2017/02/12 07:00	Official announcement (Japan/Asia)
	8OROCHI	2017/05/31 07:00	Official announcement (Japan/Asia) Needs to be unlocked by completing 挑戦！第3回天下一音ゲ祭の巻【裏】 in 段位道場 外伝 (de facto Course Mode), or bought with in-game currency on Donder Hiroba (maimaiNET-like website for Taiko), which is not available in Asia.
maimai MURASAKi	Nitrous Fury 夜明けまであと３秒	2017/02/14 07:00	Official announcement
GROOVE COASTER 3 LINK FEVER →GROOVE COASTER 3EX DREAM PARTY	Scarlet Lance Axeria	2017/02/20 08:00	Official announcement
	(Related) Warrior	2017/02/21 08:00	Could be unlocked in the online battle event ありがとう!!LINK FEVER!!! from February 20th to March 12th. On the first day of the event, there was a bug that caused the song to not be unlocked even if the conditions are met. It was fixed on the next day. The song was later unlockable by spending in-game currency.
SOUND VOLTEX IV HEAVENLY HAVEN	極圏 Solar Storm	2017/03/17 10:00	Official announcement Charts up to the EXHAUST difficulty was unlocked by default. Solar Storm was not announced.
	(Related) FLOWER Garakuta Doll Play Got more raves? きたさいたま2000		These 4 songs from the 1st Tenkaichi otogesai received HEAVENLY charts, unlockable via BLASTER GATE.

The Qualifying Round songs were new, while the Block Tournament songs were randomly chosen from all 8 songs from last year.

For the National Finals, Taiko had a new song 8OROCHI, while SOUND VOLTEX had a new HEAVENLY chart for 極圏. The new song Warrior was originally to be used for the National Finals for GROOVE COASTER, but this idea was scrapped and it was released in an online event instead.

The Block Tournament for maimai was later than other games to accomodate the upgrade to maimai MURASAKi, which happened on December 15th, 2016.

Game	Qualifying Round	Block Tournament
SDVX	極圏	Solar Storm
maimai	Nitrous Fury	夜明けまであと３秒
GROOVE	Scarlet Lance	Axeria
Taiko	毒LOＣＡＮdy♡	マサカリブレイド

天下一音ゲ祭
天下一音ゲ祭 全国一斉認定大会	Qualifying Round songs: FLOWER - Garakuta Doll Play - Got more raves? - きたさいたま2000 Block Tournament songs: FUJIN Rumble - Ignis Danse - Scars of FAUNA - VERTeX
第二回天下一音ゲ祭	Qualifying Round song: Aiolos Block Tournament song: Axeria
第3回天下一音ゲ祭	Qualifying Round song: Nitrous Fury Block Tournament song: 夜明けまであと３秒
第四回天下一音ゲ祭	Qualifying Round songs: Scarlet Lance - 極圏 - セイクリッド ルイン Block Tournament song: Xevel National Finals song: BlazinG AIR
第五回 天下一音ゲ祭	Qualifying Round songs: GERBERA - Taiko Drum Monster - ouroboros -twin stroke of the end- Block Tournament song: TiamaT:F minor - larva National Finals song: Alea jacta est! - Climax