A few years back, some game develupers had the genius idea to re-release 30 games from various systems of yesteryear. In Intellivision Classics, they focused on the games of the Intellivision systems.
Beside the good idea, there was not much else about this game that was good. All they really did was just format the game to fit on a CD, then pack as many as they could in that CD.
They games are all familier for some video game fans. They are all quite fun to play for reminisching, but the novelty quickly wore off.
Basically, there is no real reason to get Intellivision Classics unless you find it for a somewhat inexpensive price and would like to experience what games were like 20 years ago.