Black characters - Press [Respect] to toggle the "Reload Color" option, then press [Dust].

EX Characters - Press Start, and select the EX option. Note: This is also how GG Generations mode is accessed.

Gold characters - Press [Respect] to toggle the "Slash Color" option, then press [Dust].

Reload versions of Extra Slash Stages - While highlighting the stage, hold [Respect] until the title turns yellow. Note: #Reload stages are unlocked automatically with every Slash stage unlocked.

All EX characters, GG Generations mode, and special options - Successfully complete all thirty missions in Mission mode to unlock all EX characters, GG Generations mode, and special options.

GG mode in GG Generations mode - Unlock 100% of the Arcade Gallery artwork to unlock GG mode in GG Generations mode.

GGX mode in GG Generations mode - Unlock 50% of the Arcade Gallery artwork to unlock in GGX mode in GG Generations mode.

Gallery Omake extra voice actor interviews - A new interview becomes unlocked after a certain number of game play hours are accumulated.

Extra GGXX Slash stages - Play through a certain path in a character's Story mode to unlock a particular stage. For example, during Sol's Story mode, fight Ky to unlock the Paris stage.

Play as Justice - Successfully complete over twenty missions in Mission mode to unlock Justice. Alternately, successfully complete Justice's Story mode.

Play as Kliff - Successfully complete over ten missions in Mission mode to unlock Kliff. Alternately, successfully complete Kliff's Story mode.

EX characters - Defeat a character's Black EX form in the indicated level or play through at least one path of their Story mode to unlock that person's EX version. Note: Justice and Kliff do not have an EX version.

EX A.B.A.: Survival Level 460 (defeat Black EX A.B.A.)
EX Anji: Survival Level 20 (defeat Black EX Anji)
EX Axl: Survival Level 260 (defeat Black EX Axl)
EX Baiken: Survival Level 80 (defeat Black EX Baiken)
EX Bridget: Survival Level 100 (defeat Black EX Bridget)
EX Chipp: Survival Level 220 (defeat Black EX Chipp)
EX Dizzy: Survival Level 360 (defeat Black EX Dizzy)
EX Eddie: Survival Level 240 (defeat Black EX Eddie)
EX Faust: Survival Level 60 (defeat Black EX Faust)
EX I-no: Survival Level 400 (defeat Black EX I-no)
EX Jam: Survival Level 300 (defeat Black EX Jam)
EX Johnny: Survival Level 340 (defeat Black EX Johnny)
EX Ky: Survival Level 140 (defeat Black EX Ky)
EX May: Survival Level 320 (defeat Black EX May)
EX Millia: Survival Level 180 (defeat Black EX Millia)
EX Order-Sol: Survival Level 420 (defeat Black EX Order-Sol)
EX Potemkin: Survival Level 120 (defeat Black EX Potemkin)
EX Robo-Ky: Survival Level 380 (defeat Black EX Robo-Ky)
EX Slayer: Survival Level 280 (defeat Black EX Slayer)
EX Sol: Survival Level 440 (defeat Black EX Sol)
EX Testament: Survival Level 160 (defeat Black EX Testament)
EX Venom: Survival Level 40 (defeat Black EX Venom)
EX Zappa: Survival Level 200 (defeat Black EX Zappa)

Gold and Black characters - Defeat a character's Gold form in Survival mode or play through all of that character's paths in Story mode.

Special Illustrations 2, 3, 4, 5, and 6 - Successfully complete level 500 in Survival mode to unlock Special Illustrations 2, 3, 4, 5, and 6.

Special Illustration 7 - Unlock all Gold and Black characters to unlock Special Illustration 7.

Special Illustration 8 - Unlock all Arcade mode gallery artwork to unlock Special Illustration 8.

Special Illustration 9 - Unlock all EX Arcade mode gallery artwork to unlock Special Illustration 9.

Special Illustration 10 - Successfully complete level 1,000 in Survival mode to unlock Special Illustration 10.