Megaman/Rockman III (NES). Guts man stage, the stage where there would ride with something then can drop you off. and i forgot which stage, the blocks that appear and disappear. need to remember the pattern. easy nowadays since you can watch walkthroughs.
Twinbee - does this game have an ending? try completing until the 5th stage. and you'll see how it had become moving onwards, especially the boss. since I can't complete it, i've tried the emulator for save state and reload state but still it seems a never ending stage on the last part. or would just repeat to the 1st stage with harder enemies. (able to see it because of the emulator).
recently FFXIII-2 first and second Caius boss fight. i don't know what would work. took a while to defeat him but still haven't 5-star him. i've grind out experience and level hence the final Caius boss fight isn't that bad.
anyway i believe the hard games are really mostly during the 8-bit era. i think kids nowadays won't try to play that much if the game is too hard.
