Modes & Systems
Café, Shop, Endless Games, Two-Player, Challenge Land and Story — the structures around the minigames.
The Systems at a Glance
Café / Museum
The hub. Talk to the Barista about your progress, replay any game's intro, and (in Fever) watch a demo if you're stuck. The Museum is where unlocked games and collectibles live.
Shop & Rhythm Toys
Run by Saffron in Megamix. Buy Rhythm Items and Music with Coins, and extra Rhythm Games with Flow Balls. Rhythm Toys are unlockable playthings tied to medals.
Endless Games
Score-attack modes that run until you fail, unlocked by collecting medals. Endless and Extra games never host Perfect Campaigns.
Two-Player
Local versus/co-op variants of normal minigames — split-screen, turn-taking, or a second on-screen character, with a couples' compatibility rating in the arcade.
Challenge Land
Ride the Challenge Train through courses of altered-rule games (Megamix). Solo costs a 5-coin fare; up to 3 friends ride free. First clears pay out Flow Balls.
Story
Megamix wraps the minigames in a light quest through Earth World and Heaven World; Groove adds the Beatspell RPG mode on top.
Café & Museum
The Café (called the Kissa Council back in Rhythm Tengoku) is the recurring social hub, usually reached through the Medal Corner. You come here to talk to the Barista, who chats about your progress and — if you hit three Try Agains in a row on a game — offers to skip it for an OK rank (in Megamix, Rupert charges Coins instead, scaling from 3 up to 30 as you go deeper). The Café also houses the Music Corner and Reading Material you unlock through Perfect Campaigns. The Museum is the gallery side: the grid of every game you've unlocked, plus the Rhythm Items you've bought, viewable per game.
Shop & Rhythm Toys
In Megamix the Shop opens at the Café after you clear The First Gate. Saffron sells two things on two currencies: Rhythm Items and Music for Coins, and extra Rhythm Games for Flow Balls. Items are souvenir collectibles with flavor text — a 10-coin Soccer Ball from Karate Man, a 4-coin Robo Juice from Fillbots, a 2-coin Paper Bag from Catchy Tune. Bonus Rhythm Games run on Flow Balls (Quiz Show 3, Bouncy Road 5, Karate Man Kicks! 8, Night Walk 10). Once you've bought every Rhythm Game, Saffron converts leftover Flow Balls to 30 Coins each. Rhythm Toys are unlockable interactive playthings, freed up as you stack medals.
Endless Games & Two-Player
Endless Games are score-attack rounds that keep going until you slip up — perfect for chasing personal bests. They're gated by medals: in Fever, Mr. Upbeat needs 3 medals, Wake-Up Caller 11, Munchy Monk 23, Lady Cupid 32, and the climactic Endless Remix demands all 50 Perfects. Fever even tracks a Personal Record and an All-Time Record across save files. Megamix swaps the Endless menu for the Gatekeeper Trio, who block progress with Trials at three difficulties (Saffron = Easy, Saltwater = Normal, Paprika = Hard).
The Two-Player Menu (arcade Tengoku and Fever) reworks minigames for a second player — some split the screen, some have you alternate turns, some hand player two a different on-screen character. The arcade version even rates the pair's "compatibility."
Challenge Land & Story
Challenge Land (Megamix) opens after The First Gate and sits outside the story. You board the Challenge Train — 5-coin fare solo, free with up to three friends — and ride through courses of Rhythm Games with altered rules. Clear a course for the first time and you're paid in Flow Balls to spend back at the Shop.
Megamix's Story Mode follows Tibby, the pink prince of Heaven World, who tumbles down into Earth World; you agree to help him home, clearing Rhythm Games across themed lands (Honeybee, Machine, Citrus, and more) to restore everyone's "flow." The journey climbs Lush Tower, fans out into a rainbow of towers, and ends at Mamarin Palace — who turns out to be Tibby's mom. Groove builds on this foundation and adds the Beatspell RPG as its own unlockable mode.
Endless and Extra games can't host Perfect Campaigns — only main-section Rhythm Games that award medals can. See Ranks & Perfects for how that works.