Added a whole buncha things, including a timer, and fixed the select switch problem (well, I didn't fix the select switch problem, Michael Rideout did.) To turn on the timer, put the left difficulty on A and a clock will appear (instead of an H). Right now, the default settings are 30 seconds for every maze, but that will change depending on what mazes are added/subtracted. Also, improved the "ping" noise. This'll be the last update for today, will work on this game some more tomorrow. Among the things to do is start the timer counting when the sub moves.

EDIT: Forgot to upload the file! Starting the timer counting when the sub moves added.