- Approval of God:
- Although
Nintendo initially thought Sega was joking when they proposed the arcade version of Tengoku, they eventually gave their approval towards the port once they realized that they were serious and how much Sega's staff loved the game, with Iwata being ecstatic about the idea. - Ko Takeuchi, the lead character designer for the series, left an appreciative comment on the "Rhythm Heaven Reanimated" Multi-Animator Project, reading, "Thank you from the bottom of my heart."
- Although
- Ascended Fanon: "First Contact" was a Fan Nickname created well before Megamix received an official translation.
- Channel Hop: Nintendo SPD developed Tengoku. A year later, Sega developed the arcade version. All subsequent games were again developed by Nintendo SPD.
- Follow the Leader: While not nearly to the same extent as Mario Party, Wii Sports or even WarioWare, Rhythm Heaven is still a Minigame Game owned by Nintendo that gets a few clones here and there.
- There's an obscure Nintendo DS game called Beat City which has you hold the system on it's side like Heaven, and whose protagonist bears a striking resemblance to the Munchy Monk.
- One of the many web browser games Adventure Time had was called Rhythm Heroes whose Rhythm Games mostly consisted of Expies of existing ones like Glee Club.
- Megamix had a bootleg mobile port which can no longer be accessed, presumably due to potentially obvious reasons.
- Fan Remake:
- Karateka Mania, which is a remake of the Karate Man games (the DS version in particular), retooled as a more traditional rhythm game.
- Polyrhythm Mania is an expanded version of the Polyrhythm and Built to Scale Wii games.
- Heaven Studio, which serves primarily as a Level Editor but also includes remakes of every game.
- Fan Translation: Tengoku was given a translation by a fan named "W Hat" titled "Rhythm Heaven Silver". While most of the text is translated, the voice samples remain untouched (a fact joked about at least once), though it was planned to at one point.
- He Also Did:
- It's no coincidence that the development team also made WarioWare.
- The series' producer and primary composer, Tsunku♂, was also a long-time producer for the Hello! Project.
- Keep Circulating the Tapes:
- Most of the Rhythm Heaven soundtracks are Japan-only, so the localized versions of the vocal songs are hard to come by; they also don't have extended versions like the Japanese ones do.
- Megamix is no longer legally sold in North America, as it was only available on the 3DS eShop, which disabled adding funds on August 29, 2022, and was shut down entirely on March 27, 2023. Due to being the only version of Megamix not to get a physical release, it's impossible to play on native hardware if the 3DS' owner hadn't previously bought it. Even legally importing the European/Japanese versions is out of the question since the 3DS is region-locked, unlike the region-free GBA and DS.
- Marth Debuted in "Smash Bros.": Remakes of The Clappy Trio, Sneaky Spirits, Power Calligraphy, and Tap Trial appear as bonus games in Fever, saying that they'll appeal to the most die-hard fans. However, these games never appeared outside Japan previously. Megamix, on top of bringing back the above four minigames, also introduces many more of Tengoku's games outside of Japan for the first time. Particularly, the original Karate Man, Rhythm Tweezers, Marching Orders, Spaceball, Rat Race, Sick Beats, Bunny Hop, Space Dance, Quiz Show, the original Night Walk, Bouncy Road, and Ninja Bodyguard.
- No Export for You:
- Rhythm Tengoku was never released outside Japan, reportedly because of the declining popularity of the Game Boy Advance. While many of its games got into Megamix, it's missing the original Samurai Slice, The Bon Odori, Mahou Tsukai, Toran and Porin, Polyrhythm, Rap Men, Toss Boys, and Fireworks, as well as a majority of the sequels. However, the arcade port has showed up at several Round One locations in the United States.
- The Japanese version of Rhythm Heaven Fever contains an endless game called "Manzai", which was not present on western releases, either because of difficulties in translation or because its idea would be lost outside of its country of origin. It was replaced by "Mr. Upbeat", a recycled game from Rhythm Tengoku.
- The soundtracks have never been released outside of Japan, which has an unfortunate side effect: the vocal tracks in this series do not have extended English-language versions.
- Pre-Order Bonus: Pre-orders for Megamix on Amazon Japan came with a special microfiber pouch.
- Referenced by...: Girlfriend from Friday Night Funkin' was confirmed by PhantomArcade to have been designed as an Expy of Rhythm Girl from Fever.
- Sequel First: Rhythm Tengoku Gold, AKA Heaven, the second game in the series, was the first released outside of Japan.
- What Could Have Been:
- During Heaven's development, the ability to touch the edge of the touch screen was considered, but was dropped for being too difficult.
- The Dazzles were originally going to wear pink dresses◊ instead of the red-and-white-striped dresses they got in the final game. This was likely changed in order to not get them confused with the Pop Singer (who also wears a pink dress in her first appearance).
- Ringside was originally going to be a Japanese-style wedding cake-cutting rhythm game, with wedding guests taking pictures and requesting the person's attention. Masami Yone thought that the idea didn't seem too promising, and came up with the interview scenario instead.
- See-Saw has unused data for a two-player mode in Fever's files.
- Unused graphics in Megamix shows several assets for sequel games that never made it, such as the electric fish from Night Walk 2, the "No Peeking♥" signs for the "Rhythm Tweezers" segments from Tengoku's Remix 8, almost all of the art from Marching Orders 2 (abet with Marching Orders 1’s Cadets), the demonic-looking quiz master from the endless version of Quiz Show, the small robots from Fillbots 2, and the face Munchy Monk makes at the end of Munchy Monk 2. Most of these assets still work in the game, too; one fan modded Fillbots 2 using the unused bots and Munchy Monk 2 with the face at the end.
- When the fans finally got the debug menu for Tengoku to work, they uncovered things that didn't appear in the final game:
- An alternate version of Remix 1 which is both a full minute longer and replaces Rhythm Tweezers with Tap Trial, suggesting that the games may have originally been arranged in a different order.
- An alternate version of Rap Women that's much harder than the official version, utilizing off-beat cues in weird and creative ways.
- An alternate version of Remix 1
- Rhythm Tweezers in Tengoku was originally going to use a real face, but the devs found it to be too gross, so they replaced it with the onion in the final game.
The moderators say...
That's some interesting trivia.
...but still just... OK
That's some interesting trivia.
...but still just... OK
