Some additional info from my experience with the game. One of the fun side things with Fighting games is unlocking all the characters, stages, gear/outfits etc.
I have a question. Are there any unlockable stages? That isn't clear to me at this point. I beat story mode and other things, I don't recall if that unlocked any stages.
As far as characters and costumes there are 4 unlockables that I know of that are tough to get.
Goes without saying that the Alpha-152 character will take time as you need 300 titles unlocked.
The last challenging bit are the three legend costumes for Lisa, Christie, and Tina.
The Lisa one seems nearly impossible to me as you need to beat survival on Legend...it's 100 wins.
For Christie you need to beat Time Attack on Legend(no continues with any character).
For Tina you need to beat Arcade on Legend(no continues any character).
I have confirmed this. Many online sources are wrong with their info.
Many sites, and sources are saying you need to use Tina to unlock Tina's final costume...Christie for Christie's, Lisa for Lisa's. Some sources say you can not continue...some say you can continue(Arcade/Time Attack)as there is only a 30% chance of it unlocking.
FYI I have unlocked both Christie's and Tina's and did not use either character. I used Ryu, beat Time Attack and Arcade on Legend...using no continues and both unlocked.
It was trial and error as I heard you had to use the specific characters...COULD continue etc.
From my experience...even continuing once made the attempt unsuccessful. I tried many times and finally gave it a shot with Ryu..made it through without losing and the costumes were unlocked.
Legend is tough. They seem to counter more than 60% of your moves and for someone who is not a pro level fighting game player as myself I have no idea how one can beat Survival on Legend straight up.
Anyway for Arcade and TA...I used Ryu's Ongyoin...waited for the CPU to either start attacking or counter then launched
Fudo-Ryujo or Fudo-Zanshu. Tenrin-Kyaku was often used when finding myself in close quarters and having to mix it up.
I basically kept my distance with Ryu...hit diagonal back/up P to get into Ongyoin...waited for the CPU to react making it's self vulnerable and then hit Up K or Up T etc...rinse and repeat. Took no more than 15 minutes to unlock the two Legend costumes but with so much confused info online at this time I wasted time using characters I'm not as good with or using continues thinking it may still work.
Sorry for the long rambling post but I'm thinking a lot of people dig unlocking stuff in fighting games so thought some gamers may appreciate a heads up.
Hoping other's can post stuff they unlocked personally with tips etc as well.