Sounds kind of like everything you've said you're unsure of. You initially said your friend didn't know how to unlock Akira and Sarah, then that Gen Fu was unlocked, and now that Akira and Sarah are actually the first two unlocked characters.
You also said that Mila's second costume is red top/black shorts, but now you're saying it might be her main?
But what really makes me believe you friend is not playing the final build is that MC Hammer might be at the title screen. That was a trick question! He was cut from the game last week in favor of Vanilla Ice! Pedal your lies elsewhere sir!
Your not going to get discredit what I said. As I see your comprehension ability is low (intentionally, for sure), I will list everything I've said, again.
Mila Main / Alternate / Third / Whatever Costume: Red top with VICTORY word written on it. Black short pants. Black gloves.
Critical Burst: Corkscrew Strike
Power Blow: Gatling Power Blow
Akira and Sarah can't be selected from the start...but it is likely that two of those three free slots, are occupied by them. The initial roster is:
[Kasumi] [Brad] [Mila] [Helena] [Kokoro] [Bayman] [Christie] [Rig] [Jann Lee] [Zack] [Ayane]
[Hayabusa] [Eliot] [Tina] [Lisa] [??????] [??????] [??????] [Bass] [Leifang] [Hitomi] [Hayate]
.............................................................. [Random]
You can see Gen Fu, Akira, Sarah, Pai or Alpha-152? Me neither. Was a misunderstanding. Ok? End of discussion.
PS: And please, don't underestimate me, I'm not a fifteen years old teen