Basically it's the sum of all the Ninja Gaiden Revisons (Sigma in math is sum of all things) as it has:
New Areas
- New Enemies
- New Bosses
- New Playable Character Rachel: Whom has new moves
- New Weapon: Katana
- Better Graphics
- This is considered the "complete edition" of Ninja Gaiden
- New stages, battle engine will be improved and upgraded
-The visuals, including characters, stages and effects, are being upgraded
-All cinema scenes in the PS3 version will be real time.
-Event scenes are being redone, and new scenes are being added
-new moves and actions
- New weapons for Hayabusa
-Experience the storyline from Racheal perspective.
-Development on Ninja Gaiden Sigma is currently 25%
-new enemy characters
-improved projectile weapons like the shuriken and bow and arrow
-general combat system is more speedy, has better animations, and better AI
- mission modes that was in Ninja Gaiden Black
- possible online modes(Hurricnae packs, ect)
-There will be Karma leader boards where you can upload your scores and compare them with people around the world to see who is the better Ninja
-water combat is one of the new features in the game that has a wow factor. (As you keep moving you will stay on the water)
-If there's a market for NG in PS3, the team will definitely look into porting future games of NG to PS3
- NGS is PS3 exclusive it seems
-NGS will use the motion sensing in the PS3 controller
-There will be a fight with Doku early in the game(playable cutscenes ala MGS3)
http://ps3.ign.com/articles/736/736392p1.htmlSory, że po angielsku ale za dużo do tłumaczenia.