Everything is in the readme file
2. CONTROLS
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The emulator controls are the next ones:
- Joystick: Movement in pads (1, 2, 3 and 4), mouse and analog control.
- Buttons A,B,X,Y,L,R,VolUp,VolDown,PUSH,START: Buttons A,B,C,D,E,F,G,H,I,J.
- Button SELECT: Insert credits...