Guilty Gear XX Accent Core Plus R
Guilty Gear XX Accent Core Plus R is the final revision of Guilty Gear XX. Released six years after the previous installment: Guilty Gear XX Accent Core, Accent Core Plus R contains a large amount of balance changes. Some characters have had minor tweaks while other characters have been completely reworked.
Additionally, there have been other minor aesthetic changes and improvements such as: the Beat counter now showing you which hit(s) are invalid, the changed Life Gauge color when a player's life is is full, and new art for the Burst Gauge.
Kliff Undersn and Justice have been formally added to the cast of playable characters. Although these characters existed in previous releases of the XX series, this is the first time that the characters have been tournament legal.
EX Characters are unlockable versions of characters which are not tournament legal. These characters have move sets which differ significantly from their base character. In order to select an EX character, highlight the character you wish to play on the Character Select Screen and press the Start button. For detailed information on how to unlock these characters, and the differences between them and standard characters, refer to this guide. EX sections for characters exist on the wiki now, but they aren't the primary focus so some pages may not exist yet and the ones that do exist are extremely rough.
Selecting +R Mode on Console
By default, the game will not be set to AC+R. To change it to AC+R, navigate to Help & Options > Game Settings > Version and select AC+R
Afterwards, you should see ver R on the bottom right of the main menu. The title screen will also show the AC+R logo if you go back to the Title Screen, but strangely will show the regular AC logo when you first start up the game.
Saving the game afterwards should keep the game on AC+R by default.
The Steam version of the game has implemented many new training mode features. The following page is a guide on what all the features do. Link