Lost Levels the original Super Mario Bro's 2 released in Japan before the West decided it was too hard and just reskinned Doki Doki Panic to look like a Mario game. Lost Levels is infamous for its difficulty and is very punishing, was released later in the West with Super Mario All Stars which was still more forgiving than the original.

Perfect for hard mode, progress through worlds isn't easy, deaths will reset the level/checkpoint but a continue will reset the world. Some will say its the OG Dark Souls game... and I would be inclined to agree.

@Kythias

Anyone else who wants to throw their hat in with the Hard Challenge, this weeks game is Super Mario Bros: The Lost Levels. Max playtime of 5 hours, to be done by next Monday evening. Winner to be determined by progress (i.e. Furthest level completed) and deaths to be recorded as tie breaker.

Time: 05:00:00
Progress: Furthest level completed
Tiebreaker: Deaths/Continues

1st) Wuggah - Completed
2nd) ReturnOfOctobot - Completed
3rd) Quantum_P1 - Completed
4th) Alondite
5th) Kythias
6th) Deccyf