When you are preparing to jump into the river in the beginning, Rowd will have a group of soldiers attack you. When he runs off answer Jowy so that you won't jump off, Rowd will return with more soldiers. Do this 108 times for a color intro.

This isn't that great, but it is a commonly unknown secret, and it levels up your characters as well. Also, sometimes it won't work if you do it 108 times. I t is a real pain to get to 108 and not have it work, so do it 110 times and be safe.