Change Link Color in Keynote after a click
I am making a game show presentation for a school function. On one slide you can click on one of four links representing 1 of four games. When you click on the link for the appropriate game it takes you to several slides which have the quetions for that game. At the end of the questions, there is a link back to the main slide which again allows you to choose 1 of the 4 games. I want it set up so that after I click on one link and then come back to the home page the link will be a different color (like when you click on a hyperlink in a web page). This way the user knows which games have been played when they come back to the main page and will not click on a game they've already done. I know this is possible in powerpoint (although I can't figure out how there either) . Can I do it in keynote?
PowerMac G5 dual 2.0, Mac OS X (10.4.9)