When I was younger, I played Gauntlet 2 for about 4 hours once... I got to level 254 or something, and that's when I decided that it was unbeatable, especially after levels began to repeat themselves.
There was this dragon thing that you were supposed to kill, and it just shot fireballs and stuff at you, I eventually learned that I could stay far enough away to the point where it couldn't hit me, but I could hit it, and I killed it just like that. The announcer dude would say something like "I've not seen such bravery!" or something, and the points would start racking up.