Ghouls and Ghost comes to mind as many frustrations by dying oh so many times. Unless I had cheats on or the golden armor, I never stayed in the knights armor very long, lost the armor, and ran around in the underwear when I usually died, or got to the next checkpoint or beat the boss by sheer luck. Many deaths came from: Having the wrong weapon, cheap monster attacks that came out of nowhere, Too many projectiles on the screen, Not being able to control the jump and landing on a bullet or spikes, Jumping off the map into the depths below going (What the hell.), etc. Ah Fun times.