Hardest: Friday the 13th for NES...can only be beaten with Game Genie..(runner up is Out of this World for SNES...beatable in 8 hrs if ur good, but otherwise will take a month easy)
Easiest: Bruce Lee: Quest for the Dragon...was blackbelt in 2 hrs, and beat the game in 5 hrs...(runner up is Sesame Street: Counting for NES...if you know what a number is, you win!)
Most Fun: Goldeneye 64....Halo 1&2...
Most un-Fun: Glover for N64, that first Starfox game for Gamecube...