We announced at the end of December that http://www.trueachievements.com/Castlevania-HD-xbox-360.htm
would be getting additional DLC
. Well, the first of these DLC additions has been released today. The extra stage is actually titled "The One Who Is Many", and does not include any achievements.
An extra stage modeled after the underground section of Castlevania: Symphony of the Night. You'll face Legion, the boss that epitomizes "all for one, one for all."
There will be another extra stage available for download following today's release. However, this stage, titled "Lord of the Flies", does not have a confirmed release date yet.
The "Extra Stage: The One Who Is Many" DLC costs 320 MSP and is available to download from here