[Chase817]

For Tetris:
1. Open the finder
2. Open Applications
3. Open Utilities
4. Open Terminal
5. type "emacs"; click enter
6. Press ESC + X at the same time
7. Type "tetris"

For Snake:
1. Open the finder
2. Open Applications
3. Open Utilities
4. Open Terminal
5. type "emacs"; click enter
6. Press ESC + X at the same time
7. Type "snake"

Open the terminal again, at the prompt type:
"ls /usr/share/emacs/21.2/lisp/play"
Don't forget the space!
You'll get a directory of the games included with emacs,
to play these games do the same thing as with tetris,
except type your chosen game's name in place of tetris.

[JedixJarf]

Snake is my favorite game in terminal