Good news, Guilty Gear Isuka is released for the Mac now on GOG.com. Click on the link or on the blue “Buy this Mac game here” button mentioned mentioned above and create an account using the signup in the top bar on the GOG.com website and buy the game. You automatically get when creating a free account 10 free GOG games added to your account (most of them also native for Mac so no port required) so you have nothing to loose, only to receive.
Guilty Gear Isuka is a 2d fighting game featuring 27 unique characters, each with their own skillset of special moves and abilities. Along with the cornucopia of playable fighters, Guilty Gear Isuka boasts several modes of play. In Robo Ky Factory, create and customize your own fighter and customize him with moves from other fighters within the game. In GG Boost mode, you’ll go on a side-scrolling adventure, defeat a horde of enemies, and avoid the deadly traps that litter the level.