I remember playing this game years ago when I was 10 years old and having the hardest time in the world beating the first 5 single player missions. I finally gave up and started using cheats like "power overwhelming" to blaze through the missions. The last few protoss missions in the original I proclaimed "impossible" without cheats because none of my ten year old friends at the time could beat it as well. However I still found the game addicting and played for hours with my friends via connected modems.