The difference of offline play in Heroes II and Heroes III.

Also, one of the significant differences in the game itself is that in the second installment, during multiplayer, when your opponent passes you the turn, the game doesn't automatically pop up on the monitor, above other programs, websites, and so on, as it does in the third installment. Therefore, if you're reading something interesting or watching something, you might not notice that your turn has been passed to you for a while. There are two ways to solve this problem: the first is to play with the music from the second installment, as a special music cue plays when your turn is passed; the second option is to message your opponent on ICQ when you pass the turn (usually they send a "1"). And here's another thing that came to mind about dragons: I remember being surprised when I started playing the second installment that the Meteor Shower spell doesn't affect green dragons. I thought that, like in the third installment, magic up to level 3 doesn't affect green and red dragons, and no magic affects black dragons. However, in the second installment, magic of any level doesn't affect green, red, or black (all "colored") dragons.