Taiko no Tatsujin Momoiro Version Arcade Machine is from the music and rhythm series and followed Sorairo that same year and is the third upgrade to the network-enabled Taiko 2011 release.
'Momoiro' refers to the peach-pink theme of the firmware, and may also refer to the girl band Momoiro Clover Z, as the franchise has recently scored a major collaboration with them and even have a new song in their name.
All network activities such as Dojo Ranking, Don Challenge and others established in Sorairo Version is carried over here, as with most player data. Two major changes, however, include the titles and the costumes.
The full-body costumes we used to know as 'kisekae' (着せ替え, changing clothes) is now given the proper name of 'kigurumi' (きぐるみ). In addition to the full-body costumes, players can also opt for a three-part costume made up of head, body and accessory; the new form of 'kisekae'. Some of the full-body costumes from previous firmwares were put into one of these three categories, in addition to more new costumes.
The other thing being split apart are titles: some will be deleted along the way but the majority will be tweaked to fit a new system of being able to piece together two parts to form a single title. Of course, singles titles will still be available for unlock and use.
Online features are beefed up too, with the Dojo Ranking gaining another fiendish tier above the current highest rank, 10-Dan, and a Rewards Shop added into the online player network Donder Hiroba, marking the first time accumulated Don Points can be spent to buy more costumes (some of which are promotional and time-limited), Taiko sounds, and even new songs.
There are a total of 26 secret songs, 60 Ura (1 pl) songs, and 42 songs added through updates post release, making a grand total of 363 songs.