One of my first game programming books was for the Apple ][e. One of the cool BASIC programs in the book was this skiing game. For some reason, it was cool to punch into the computer and entertaining to play. I ported it over to the TI and added obstacles (see 2nd last menu option – by default they are off but you can easily turn them on). Just use the left/right arrow keys to direct your skier. It keeps track of your score and the highest score.
