Snake is the first of my Game Development Discipline series. It's simple enough to play, at the beginning press 1 or 2 for 1 or 2 players. Player 1 (blue snake) uses the arrow keys, player 2 (yellow snake) uses the WASD keys. For single player you just try to beat your own high score. The goal of 2 player is to win the best of 5 games (no score is kept). Just like classic Snake, red apples makes you grow, but here there are also green apples that make you shrink, as well. My son, age 7, loves playing 2 player against me.