Guilty Gear XX #Reload Cheats

EX fighters:
By beating an EX character in survival mode, Then, hold White when choosing that fighter at the character selection screen to unlock the EX version. You can also finish 30 missions.

SP fighters:
By beating an SP character in survival mode. Then, hold L when choosing that fighter at the character selection screen to unlock the SP version. You can also finish 80 missions.
User Cheat by TheNineties

GGX and GGXX mode:
Finish 70 missions.

Unlock Kliff:
Finish 50 missions.

Unlock Justice:
Finish 50 missions.

Fight against gold fighters:
By highlighting the "Arcade" or "M.O.M." mode options, then hold L while selecting it. You will fight against gold opponents in that mode.

Fight against EX fighters:
By highlighting the "Arcade" or "M.O.M." mode options, then hold White while selecting it. You will fight against EX opponents in that mode.

Fight against gold EX fighters:
By highlighting the "Arcade" or "M.O.M." mode options, then hold L + White while selecting it. You will fight against EX opponents in that mode.

Johnny: One-hit kill:
In arcade or training mode, select the Gold version of Johnny. When the fight begins, at any time use any version of Johnny's Mist Finer and the enemy will be instantly defeated. Do not use the EX version of Johnny because the catch version of Mist Finer will not one-hit kill your enemy.
User Cheat by mslevine

Johnny: Warp:
When playing as the Gold version of Johnny, perform the motion to run. Johnny will not run, but instead "warp" to the other side.

Alliances in arcade mode:
When playing in arcade mode and on either GG or GGX mode, there are alliances to watch out for. Alliances are when two characters come after one another that are either friends or enemies in the Guilty Gear storyline.

Sol-Badguy to Ky-Kiske
Johnny to May
Anji to Baiken
Dizzy to Testament

Guilty Gear XX Reload Official Game Site

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Guilty Gear X2 Reload Review - GameZone