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Turbo mode is supposed to slow down even while the button is being held down during link attacks in battle to give time for the button input but it's not working for me. The button it's assigned to also functions as a shortcut in game but according to a response from the developer on the steam forums, that function is supposed to be disabled when turbo mode is enabled in the launcher. My launcher doesn't even have an option to enable Turbo mode. According to him it sounds like I have a pre-launch build of the game. Am I the only one with this issue or has gog mistakenly been selling a pre-launch build of the game?
I had the same issue and it fixed its self when i restarted the game, the shortcut for rt/r2 was no longer in the options menu allowing turbo to work properly , maybe it was a quick patch that fixed it.