Introduction - If you have any usage issues, please Google them yourself
source in Borland C 5.0 and 6.0 versions of the game under compile operation : by next move around the cursor keys, each eating a "beans" an increase, and increases the length of the snake one. Eat red "beans" a grade increases, reducing the length of the snake for a re-growth. Hit the edge of the wall, and a snake itself, the end of the game.