Blocking the first stable release:

1. Waiting a while to see if it has any bugs

For future stable releases:

1. Different (including non-caffeinated) energy sources with different amounts
of energy and different prices rather than just energy drinks. Coffee suggested
by Andy <myside_1@yahoo.com>, though I had planned on it anyway.
2. Levels of play
3. ASCII art graphics
4. Hack servers as well as other geeks.
5. Make "show w" and "show c" command-line arguments.
6. Neater scoreboard.
7. Encrypted score and save files (maybe).
8. Better Makefile/version.c/etc
9. make uninstall

Also:

1. Java applet for web (suggestion of Dani <dani@bergernet.ch>)
