This defines CLASSIC
I must have played this 1000 times beore i memorized the entire game, all teh spawn locations and where to stand to avoid incoming grenades and bullets. I played this through and through so many times that i had a commando stance in my chair, with my foot on the space bar to throw grenades.
Simple graphics with about 12 colors including white and black, simple gameplay but with a difficulty that would rival many games out today. Infact I played this recently and my reflexes are not that of a 9 year old anymore so I found it near to impossible to play. I know of 1 other person that has played this and he is hungarian so i guess you could call this game universal and well known, a classic game that many found to be the best type of combat in a game during its lifetime.
If you get yourself a c64 emulator then play this game and see how you do. Don't bother with a real C64, the load times are just not worth it and it would suprise me if you found a cassette of this game still in existence.