Good game, fun to play.. lacks difficulty :(
Story mode - Pointless, story seems to be the same for every character (in terms of who you fight, text is different!) lasts about 8 minutes on hard & the credits at the end last about 10 (Abit much when credits last longer than the game.) i was abit disappointed when i completed the story with Yoda and didnt fight Darth or The Apprentice, was very much a "What the hell does Siegfried or Nightmare have to do with Yoda?" moment.
"Yoda" - Pretty annoying personally, very short... reminds me of Tekken when you had to fight Gon, very fustrating since typically only low-attacks hit him... he has some nice moves, but feels very much as if your "exploiting" when fighting online, and he isnt that great.. i imagine Darth Vader is better.
Arcade mode - Very good classic gameplay, but can easily floor every battle, then suddenly The Apprentice comes up, my god what a **** of a fight! if i ever do that without continuing 10 times ill be stunned!.... then when you start thinking "Rah! Finally its getting harder!"... its the final battle, and you can push him outta the ring in about 5 seconds, if not then you can easily beat him anyway.
Tower mode is pretty good so far, im on about level 12/20 (theres another 20 after) not really hit any difficulty there yet but hopefully it'll get harder.. and theres also little goals to perform to unlock all the items during the fights so u'll be repeating them a few times.
Create character is also very good, can customize alot & it now has stats / skills. just a shame you cant customize a jedi.
All in all, good game not regretting the purchase at all, if there was more difficulty to it then it would be a good 9/10.