Introduction:input six number from one to six, and number repeating either in each line or each column
Button briefing:
Directional keys: up, down, left and right
A key: press "A" key to select from one to six; for instance, press "A" key, show "1", press again to show "2" and so on
Power on/off key
Start /pause/new game key:white playing the game, press and hold the start/pause/new game key for three seconds, then the game will be Abandoned and go to the game selection menu to select new game
Mute key: press to change from sound on/off to sound off/on
Erase key: move to a certain number box and then press the erase key, the occupied number will be cleared.
Submit key: press the submit key to tell the system you have done, if it is correct, a congratulation display shows for 2 seconds; high score and record time are show; if it is not correct, a "beep beep" sound is played to tell you that it is not correct
