Defender is a good example of classic arcade. You have 4 different ways to play. The most modern ones are the two player and the XGP versions. The other two are both the old timed classic versions. The pros of the game are: 1.Many different ships to chose from 2.A breifing room to give you a look at what your facing 3.Will not finish in a day 4.Adjustable diffuculty settings 5.Good graphics 6.Multiple worlds to battle on. The only con of the game is that there is no save option or passwords. This gets to be very frustrating when you are far and you lose. All in all though, this is a good game that will keep you playing.