"Johnny" appears in several fighters. Specify the game for matchup advice:
Guilty Gear Strive / -Xrd- / -XX: Johnny (Zato-1 clone? No, Johnny is own char). Coin system, Mist Finer, Bacchus Sigh. Late game: Meter management, coin conservation, unblockable setups.
Tekken 7 / 8: No "Johnny". Steve Fox (boxer), Leroy, Feng?