Current Games
Hatsune Miku - Project Mirai 2
If you don't want to wait for Project Mirai DX (it's being localized in the US, I don't know about Europe) and want to play a vocaloid rhythm game straight away, try Hatsune Miku Project Mirai 2. It has all the Project Mirai songs and plays them in a new format. There's also a new touch version. As long as the inclusion of a Puyo Puyo minigame featuring all of the cast.
Puyo-Puyo Tetris
This Puyo Puyo "spin-off" includes Tetris (obviously), includes a story campaign, multiplayer over local and Wi-Fi (via the Nintendo Network). However, this game is multi-platform.
E.X Troopers
Interested in a 3DS shooter? E.X Troopers is probably your best shot. It isn't going to be localized because
Christian Svennson said:
"[E.X. Troopers] was not planned for Western release. You can tell this because all of the text is 'hard coded' as actual art. The text isnt just standard 'text' that could be swapped relatively easily ... To localize a release, one would have to redo a ton of art in the game, not just do the localization and loc QA.
So it ain't happening. There have been many good reviews about it though. There is a PS3 version.
Future Games
Rhythm Tengoku (tentative title)
Simply titled as Rhythm Tengoku, this is the 4th sequel in the series and will include 70 of the classics from Rhythm Tengoku, Rhythm Tengoku Gold and Minna no Rhythm Tengoku (Everyone's Rhythm Tengoku). It will include 100minigames, 30 new ones.
Confirmed Classic Minigames from the Nintendo Direct trailer are
- Karate Man (GBA)
https://www.youtube.com/watch?v=1oFz49GDuqY
- Clapping Trio (GBA and Wii (was included in Minigames))
https://www.youtube.com/watch?v=5An8tthOmys
https://www.youtube.com/watch?v=jJ12cjr-Hf8
- Onion Pull/Hair Clipping (GBA) (Tentative Title)
https://www.youtube.com/watch?v=jHBWMAyi4qs
- Glee Club (DS)
https://www.youtube.com/watch?v=vYRx9QKhhhg
- Ringside (Wii)
https://www.youtube.com/watch?v=gWy1utqHD0s
- Baseball Star (GBA) (Tentative title)
https://www.youtube.com/watch?v=RQB6QS9fZZw
- Lockstep (DS)
https://www.youtube.com/watch?v=YrCTHodtzb4
As well as new minigames such as
- The Tango Robot (Tentative title, I made it up)
- The Alien Translation (Tentative, I made it up)
You can see the trailer here
https://www.youtube.com/watch?v=RdJEcJRvvwo