The Cross-up Kick

Anyone who’s a true Street Fighter player knows about this classic move called the cross-up. It takes a lot of skill and timing to pull it off, so here’s how it goes… If you’re just outside of sweep distance (roughly a short jump back), jump behind your opponent, and just before you touch the ground, perform a medium kick. Your strike will appear to not to even touch the opponent, but you end up hitting him/her behind the legs, staggering him/her just long enough for you to unleash a powerful combination or a super move. Practice, practice, practice! It’s a very powerful tool if you master it.

Middle Boss Conditions

The middle Boss appears when the following conditions are all fulfilled:

No time over has occurred. 
The CPU has not made over six "first attacks". 
The CPU has not made three or more Special KOs. 

Custom Grooves

The Custom Groove option appears once a normal Boss has been defeated (normal Akuma/Gouki or Rugal). Normal Bosses appear by fulfilling two of the four following conditions:

Achieve over 1000 GPS by the end of the game. 
Achieve four or more special KOs. 
Middle Boss has appeared. 
Achieve two or more LV3 super combo KOs.

Hidden Bosses

Hidden Bosses can be used once they have been defeated. The conditions of the Bosses to appear (Shin Gouki or God Rugal, randomly) are to fulfill two out of the following three conditions:

Achieve over 1500 GPS by the end of the game. 
Defeat the Middle Boss (Geese or Bison/Vega). 
Achieve at least one Ultimate KO. 

Victory Quotes

Hold Start + FP after winning a stage to make your character say an opponent specific quote. Hold Start + FK to make the character talk with a team member.

Infinite Custom Groove

Defeat all characters straight in survival mode and the custom groove option settings will become infinite.

Extra Options

Clear Boss challenge mode with no continues to unlock the "Extra Option" in the game.

Boss Challenge Mode

Boss challenge mode becomes available under the following two conditions. Both hidden Bosses (God Rugal, Shin Akuma/Gouki) must already be defeated and unlocked. Hold Square + Triangle while selecting arcade mode.