void PlayLevelSound_EM(int, int, int, int);
void InitGraphicInfo_EM(void);
boolean CheckSingleStepMode_EM(byte action[], int, boolean, boolean, boolean);
void PlayLevelSound_EM(int, int, int, int);
void InitGraphicInfo_EM(void);
boolean CheckSingleStepMode_EM(byte action[], int, boolean, boolean, boolean);