Games that can be finished in one day

Super Mario Brothers

Any of the Super Mario Bros/Super Mario World/Super Mario Land games

rugrats go wild gba -really small game , last level is the alagator ,, i beat this already several times in a day , the lion king if you know what your doing other then that i dont know a single game that can be beatin without using cheats or warp pipes for that matter in a single day

one time a friend and I beat rampage for nes in one sitting. we conquered the entire globe, but it took forever.

Spyro the Dragon, including 110%.