Clearing the game once opens everything up. The main menu has:
Story
Stage Select
Arcade (You only get one credit and cannot save!)
Boss Rush
Battle
Online
Fighting Tips
Extra (Art gallery- saw some enemy sprites I didn't see in the first play-through. Unused or something that shows up in other/harder modes?

)
Options
Also, there are high score leaderboards.
Character info shows the following playable characters:
Axel (SoR1)
Axel (SoR2)
Axel (SoR3)
Axel (SoR4)
Blaze (SoR1)
Blaze (SoR2)
Blaze (SoR3)
Blaze (SoR4)
Cherry (SoR4)
Floyd (SoR4)
Adam (SoR1)
Adam (SoR4)
Shiva (SoR3)
Shiva (SoR4)
Skate (SoR2)
Skate (SoR3)
Max (SoR2)
Max (SoR4)
Dr. Zan (SoR3)
Not sure how to unlock any of the alternate versions and other characters yet.
Yeah, they've been open about all that for a while now. It's dope to me that each character has very different play styles. Guessing Axel counts as a balanced heavy now.
Tell me a bit about Adam, I knew about the half step but dude kind of reminds me of Terry Bogard with his specials, would you say there's a similarity or is that me just seeing a power geyser like move and assuming?
Adam is more like Ken from Street Fighter than Terry from FF/KOF!
One of the enemies (the police commissioner and then a normal variant of him) has what looks like a Terry burn knuckle type move, but it's really closer to a move Rugal has in KOF.