Museum

"Let's see... One place that's open right now is the museum on the far right. You'll see it yourself, but it's kinda like your own personal vault. Keep your stuff in there, come by to visit it--you know. Spend quality time with your possessions."

- Barista, Rhythm Heaven Megamix

The Museum (ミュージアム) is a location within the Café in Rhythm Heaven Megamix. It acts as the player's "personal vault", storing their progress and other possessions related to the Rhythm Games.

Description
Upon first unlocking the Café, the museum is available. Here, the player can see all the Rhythm Games from the Story Mode laid out in a grid, similar to the Game Select screens in previous titles. On the Touch Screen in an image of Marshal looking at a painting, and the player's Flow (which is simply the average of the player's scores across all Rhythm Games, rounded up). Selecting a game displays a screen showing its icon, the player's Rank in the form of a frame and Medal if applicable, whether the Skill Star was obtained on it, the player's score, and the Rhythm Game's name. Below are four pedestals: After completing all three challenges set by the Gatekeeper Trio in each gate, the Endless Game is unlocked in the museum. The player cannot replay the individual challenges from Story Mode through the museum, nor can the Endless Game be played in Story Mode. Selecting the game through the menu displays its icon, the player's best score, and the Endless Game's name. As these games do not have an epilogue, the pedestal for it is removed. A second Rhythm Item can be unlocked by beating a pre-determined score, which adds a fourth pedestal to complete the set.
 * Rhythm Item: If purchased from the Shop, the player can read the description of that Rhythm Game's item, similar to the Reading Material of previous titles.
 * Play Music: If purchased from the Shop, the player can listen to that Rhythm Game's music here, similar to the Music Corner of previous titles.
 * View Epilogue: The player game view the epilogue to the Rhythm Game, up to the highest Rank they currently have achieved.
 * Play Game: This pedestal contains an icon displaying the icon of the console the Rhythm Game originated on, and serves as a shortcut to play it. The Rhythm Game's description is displayed on the Touch Screen, alongside an image of Marshal play a maracca and tambourine.

The player can purchase additional Rhythm Games from the Shop, which can only be played through the museum. The order of the games follows the order they're played in during Story Mode (with the towers in Lush Woods, which can be played in any order in Story Mode, following the order of their respective lands prior to this point, and the towers in Mamarin Palace having Left-Hand Tower followed by Right-Hand Tower), with six rows afterwards for all the Rhythm Games obtained through the Shop.

After clearing Shoot-'em-up, Saltwater gets hired by the museum at the Café as a curator. When first talked to, he seems to recognize the player, but dismisses it, and explains what the museum is about. When talking to him, the player gets three options: The player can watch Slide Shows (スライドショー) of the epilogues after unlocking them all, which cycles through all Try Again, OK or Superb epilogues, depending on which one they were viewing when entering the slide show. If the player starts this or Play Music while pressing down 🄻 and 🅁, they can drum to the music with the same controls as Drum Lesson and Studio from Rhythm Tengoku. Rather than playing as Anata, Spooky of the Tiny Ghosts is used instead.
 * Badges: Here the player can view the badges they've collected, which serve as achievements.
 * Mascots: Here the player can view their Mascot Collection, obtained from the Stable.
 * Memories: Here the player can rewatch the three ending cutscenes from Story Mode.

Trivia

 * A doll resembling Ashley sits on the curator's desk. This doll caused an increase in customers at the Café.
 * There are unused strings of text intended as the name and description for Coin Toss, Sick Beats, Charging Chicken and Clap Trap, specifically meant for the museum.
 * WarioWare: Move It! contains a similar museum where the player can find microgames, Forms and other things they've seen in Story Mode. While these features have always been present in the WarioWare Series, this game's implementation is very similar to the Museum in Rhythm Heaven Megamix.