DLC Schedule

Download Item	Cost	Dates 2010	Description
Forte (Bass) Mode フォルテモード	200 Wii Points 160 MS Points $1.99 (PSN)	04/05 (USA) Wii 04/07 (USA) 360 04/08 (USA) PS3 04/09 (EU&JP) Wii	Unlocks Forte at the Character Select Screen. Forte has Shop access, and a unique Cutscene and Ending.
Special Stage 1 スペシャルステージ1	100 Wii Points 80 MS Points $0.99 (PSN)		A New Stage with Enker as the Boss. Unlocks a new weapon, Mirror Buster to use in all Game Modes.
Endless Attack エンドレスアタック	300 Wii Points 240 MS Points $2.99 (PSN)	04/26 (USA) Wii 04/27 (JPN) Wii 04/28 (USA) 360 04/29 (USA) PS3 04/30 (EUR) Wii	Test your skills on random stage screens without end. Try to break the record for getting the farthest.
Special Stage 2 スペシャルステージ2	100 Wii Points 80 MS Points $0.99 (PSN)		A New Stage with Punk as the Boss. Unlocks a new weapon, Screw Crusher to use in all Game Modes.
Special Stage 3 スペシャルステージ3	100 Wii Points 80 MS Points $0.99 (PSN)		A New Stage with Ballade as the Boss. Unlocks a new weapon, Ballade Cracker to use in all Game Modes.

 

Assuming it's the same way as 9's DLC release dates. Forte can unlock Challenge 2s and Achievements like Rock and Blues. Forte Mode is the only one out of the additional content that doesn't invovle Rankings.