hey guys and brad, if i decide to create a multiplayer(2 or more) variation of the reaction game,apart from the extra 7-segment displays and push buttons, does the code remain same only with new loops for the second player and also, i'll like to add an lcd to keep track of the score! schematic, very welcome!

If you are adding an LCD I would DEFINITELY look at writing this new game in swordfish basic rather than assembly.

Check out this thread for a comparison on working with LCD with different languages:

http://www.bradsprojects.com/forum/viewtopic.php?f=21&t=192

I am sure that you will get plenty of help with your project if you decide to go with swordfish basic (it's a free download)

I have to say that I double that!, swordfish is definitely the way to go