Debug Menu

A debug menu is a user interface implemented in a video game that allows the user to view and/or manipulate the program's internal state for the purpose of debugging. Debug menus are used during software development for ease of testing and are usually made inaccessible or otherwise hidden from the end user. They are often of interest to video game players as they can be used to cheat, access unused content, or change the game configuration beyond what is normally allowed.

Rhythm Tengoku
Rhythm Tengoku and Rhythm Tengoku Taikenhan contain a debug menu known as the Sequence Test (シーケンス テスト), which allows the user to access virtually every part of the game, including some sequences which go unused. Despite this, there are still unused sequences which are not accessable through Sequence Test. The sequences are generally in reverse order to how they are stored in the rom.

Completing a Rhythm Game or pausing and quitting returns to the Sequence Test menu rather than continuing to the epilogue or Game Select. Pressing Select to exit out of Drum Lessons or Toys leads to an unused version of the results screen, which crashes upon attempting to show a comment. This screen can be accessed directly from this menu as "R-IQ (Result 2)".

Various sequences related to Rhythm Tengoku ' s menus, title screen, etc. are prefixed with "R-IQ", an early name for the game. Oddly, "R-IQ (Counselor)" appears twice.
 * Live (ライブ)
 * Baikin Hakase SP (バイキン はかせ SP)
 * Quiz (Special) (クイズ(スペシャル))
 * Mannequin Kojo (マネキンこうじょう)
 * Ura Otoko (ウラおとこ)
 * Remix 8 (リミックス 8)
 * Remix 7 (リミックス 7)
 * Remix 6 (リミックス 6)
 * Remix 5 (リミックス 5)
 * Remix 4 (リミックス 4)
 * Remix 3 (リミックス 3)
 * Remix 2 (リミックス 2)
 * Remix 1 (リミックス 1)
 * Bon Odori (ぼんおどり)
 * Bon Dance (ボンダンス)
 * Koe Machine (Neko) (こえマシン(ネコ))
 * Koe Machine (Love) (こえマシン(ラブ))
 * Koe Machine (Rap) (こえマシン(ラップ))
 * Lesson (Easy) (レッスン(イージー))
 * Lesson (Hard 1) (レッスン(ハード1))
 * Lesson (Hard 2) (レッスン(ハード2))
 * Lesson (Kime Pattern 1) (レッスン(キメパターン1))
 * Lesson (Kime Pattern 2) (レッスン(キメパターン2))
 * Lesson (Desco Beat) (レッスン(デスコビート))
 * Lesson (Bossa) (レッスン(ボッサ))
 * Lesson (Snare) (レッスン(スネア))
 * Lesson (Bass and Snare) (レッスン(バスとスネア))
 * Lesson (Fast 8 Beats) (レッスン(はやい8ビート))
 * Lesson (Snare Technique) (レッスン(スネアテクニック))
 * Lesson (Practice 1) (レッスン(じっせん1))
 * Lesson (Practice 2) (レッスン(じっせん2))
 * Lesson (Practice 3) (レッスン(じっせん3))
 * Lesson (Practice 4) (レッスン(じっせん4))
 * Lesson (Practice 5) (レッスン(じっせん5))
 * Lesson (Practice 6) (レッスン(じっせん6))
 * Lesson (Practice 7) (レッスン(じっせん7))
 * Lesson (Practice 8) (レッスン(じっせん8))
 * Studio Drummer (スタジオドラマー)
 * Check Machine (Click) (チェックマシン(クリック))
 * Check Machine (Cue) (チェックマシン(キューフ))
 * Check Machine (Tricky) (チェックマシン(トリッキー))
 * Check Machine (Total) (チェックマシン(トータル))
 * Text (テキスト)
 * Quiz (クイズ)
 * Rap Men (ラップメン)
 * Rap Women (by YONE) (ラップ ウィメン(by YONE))
 * Rap Women (by KAZU) (ラップ ウィメン(by KAZU))
 * Space Dance (スペースダンス)
 * Cosmo Dance (コスモダンス)
 * Showtime (ショータイム)
 * RIQ Data Check (RIQデータチェック)
 * Opening (B Type) (オープニング (B Type))
 * Opening (A Type) (オープニング (A Type))
 * Tram to Poline (トランとポリン)
 * Toss Boys (トスボーイズ)
 * Toss Boys 2 (トスボーイズ 2)
 * Drum Girls (ドラムガールズ)
 * Rhythm o Shuji (リズム おしゅうじ)
 * Kossori Rat (こっそリラット)
 * Flash Memory Test (フラッシュメモリテスト)
 * Hanabi (ハナビ)
 * Metronome (メトロノーム)
 * Usagi Tobi (ウサギとび)
 * Dance Lesson 1 (ダンスレッスン 1)
 * Mahou Tsukai (まほうつかい)
 * Marcher (マーチャ)
 * Marcher 2 (マーチャ 2)
 * Uma (Speed) (うま(スピード))
 * Tap Dance (タップダンズ)
 * Super Tap (スーパータップ)
 * Iai Giri (いあいぎり)
 * Air Batter (エアーバッター)
 * Air Batter 2 (エアーバッター2)
 * Shiroi Obake (しろいおばけ)
 * Shiroi Obake 2 (しろいおばけ 2)
 * Ninja (ニンジャ)
 * Ninja 2 (ニンジャ 2)
 * Hopping Road (ホッピングロード)
 * Hopping Road 2 (ホッピングロード 2)
 * Baikin Hakase (バイキン はかせ)
 * Rhythm Datsumo (リズムだつもう)
 * Rhythm Datsumo 2 (リズムだつもう 2)
 * Night Walk (ナイト ウォーク)
 * Night Walk 2 (ナイト ウォーク 2)
 * Polyrhythm (ポリリズム)
 * Polyrhythm 2 (ポリリズム 2)
 * Pachi Pachi Sanninshu (パチパチ3にんしゅっ)
 * Bari Bari Sanninshu (バリバリ3にんしゅっ)
 * Karateka (カラテカ)
 * Karateka 2 (カラテカ 2)
 * R-IQ (Title) (R-IQ (タイトル))
 * R-IQ (Menu) (R-IQ (メニュー))
 * R-IQ (Game) (R-IQ (ゲーム))
 * R-IQ (Thank You) (R-IQ (ありがとう)) (Rhythm Tengoku Taikenhan only)
 * R-IQ (Shiryo Shitsu) (R-IQ (しりょうしつ))
 * R-IQ (Studio) (R-IQ (スタジオ))
 * R-IQ (Option) (R-IQ (オプション))
 * R-IQ (Result) (R-IQ (リザルト))
 * R-IQ (Result 2) (R-IQ (リザルト2))
 * R-IQ (Result 3) (R-IQ (リザルト3))
 * R-IQ (Result 4) (R-IQ (リザルト4))
 * R-IQ (Arrival) (R-IQ (にゅうか))
 * R-IQ (Perfect) (R-IQ (パーフェクト))
 * R-IQ (Counselor) (R-IQ (カウンセラー))
 * R-IQ (Minigame) (R-IQ (ミニゲーム))
 * R-IQ (Drum Lesson) (R-IQ (ドラムレッスン))
 * R-IQ (Omocha) (R-IQ (おもちゃ))
 * R-IQ (Counselor) (R-IQ (カウンセラー))
 * Ending (After Clear) (エンディング(クリアご))
 * Ending (From Omake) (エンディング(おまけから))
 * Data Clear (データクリア)