Toxic Ravine is quite customizable. The game keeps track of the preferences of 10 players. To customize the game, pull down "Player Options..." from the Player menu. Here is an explanation of those options that may not be self-explanitory:
Set Screen Size: this brings up a window that you can use to determine how large you want your canyon to be. Just drag the window to make it larger or smaller (there is a minimum size). Note: If you have a large screen, and not a large amount of memory, you may get a smaller size than you request.
Large Rocks: If you want a canyon with a LOT of rocks in it, but you don't have a large screen, then turn off "Large Rocks". You will get 4 times as many pieces of debris, but they won't be as recognizable.
If you choose the "Okay" button, then these options will remain only until you quit. If you choose "Save Options", the options will be saved on disk, and will remain in effect next time you play the game as well.
