App: Classic snake final
Developer: 丽娜 夏
Genres: Sports, Entertainment

Standard rules:  Eat foods,  grow longer and fatter.

Score:   = Basicscore x Level x Length                                    
               Slow        Level = 1
               Normal    Level = 2
               Fast         Level = 3
Basicscore:  = 10 + 2xSpeed  (Level 1)
                        = 24 + 2xSpeed  (Level 2)
                        = 36 + 2xSpeed  (Level 3)

Keyboard:   Cursor Keys to play
                       Spacebar to Pause

Shortcuts:     A  = Move Left
                       D  = Move Right
                       W  = Move Up
                       S  = Move down

Player 2: ADSW

Functions:
   (1) Change background and snake color.
   (2)  Fullscreen.
   (3)  Walls around board.
   (4)  Speed setting.
   (5)  Two players mode.

Release notes:
Rebuild for new macOS system.