Beatmania IIDX 17: Sirius

Beatmania IIDX 17: Sirius is the 17th installment in Konami's Beatmania IIDX series of music video games. The main motif of Sirius's UI will be astronomy, as the game is named after Sirius, known to be the brightest star in the night sky. Public location tests began on May 27, 2009, and the game itself was released on October 21, 2009.

Development
The existence of a 17th version in the beatmania IIDX series was confirmed by Konami on May 25, 2009, alongside the announcement of the first public location tests at the Cat's Eye arcade in Japan, which had already been promoting the location tests set to begin on the 27th of May for several days before the official announcement.

The location tests revealed new features contained in the game, such as "charge notes", and contained a sampling of songs slated to be included on the final release. Additional tests were held in late June to early July in Nagoya and at an arcade at the Norbesa in Sapporo.

Gameplay
Sirius adds two additional note types to the game, "charge notes", or Hold-me Notes which must be held for their duration, and the "back spin scratch", a type of scratching which must be spun on one direction continuously and spun again to the opposite side at the end of the note. Selected songs contained these features on the location test build.

A new "party mode" consists of a story mode where players earn "fans" based on their performances.

Another new mode, "League Mode" is a course whereas each song is selected based on the grade that they choosed. From D grade to S grade. Songs chosed and the score that earns will convert to League points in the end. The selected songs number is ranged from 4 to 12. Score from this mode is also available to upgrade their own standards. .

Song list
During the location test, 20 new songs were available for play. The entire song list contains songs by Konami original artists and others.

Parallel Rotation
The "Parallel Rotation" is an extra stage system contained within Sirius, containing various tiers based on previous releases of the Beatmania IIDX franchise, each containing various remixes of songs from their respective and songs previously exclusive to their respective home version.