Tom Badguy
Geek Juice
Ninja Gaiden (NES)
I got to the last area, before the final boss. I could never make it past this jump. Once I got the hang of the game itself though, it wasn't horrible.
I know what jump you're talking about. There's actually a glitch in the game to get by it. If you stand on the ledge before it and slowly walk across you'll see the annoying dude in White that is just one of the many rejections that prevents you from getting to the ledge. If you got him on the very edge of the screen and crouch, he will disappear. Now this works at random times so the timing is vicious.
And how about Megaman V? Dear lord. This was the hardest Megaman for me to beat. The level designs and enemy placements made me throw my controller over and over again. Then I feel like shit when there are youtube videos of people going through the game and not getting hit. A good game but relentless as hell.