Robotron merits another mention because this was more than intense, for those who put in enough tokens to get good enough. No superlative is adequate and no other game compares, so intense you get addicted to it the same way as meth or coke. MAME of it is available and a replica box could be made, but I'm buying the first original I find locally and putting it in my fucking living room, Andy Botwin style.
http://en.wikipedia.org/wiki/Robotron_2084
http://en.wikipedia.org/wiki/Robotron_2084