I am really interested in the N64 emulator "sixty force" that runs nintendo games for mac. I downloaded the emulator and booted up ocarina of time and it ran really well! Graphics look great and the game plays really smooth. However, i am concerned about the playability of the game with no controller. Does anyone have experience using sixty force with no controller and just playing with the keyboard? Specifically zelda games like ocarina of time? I don't want to pay for the full version of the emulator if I have to get an external controller for a good gaming experience.