Super Mario Bros: Sirius 4 - 1CC Longplay No Death (NES)

Sirius 4 is the fourth rom hack in the Sirius series that changes all the levels of the original Super Mario Bros while simultaneously increasing the overall difficulty and be careful the enemies do move a lot faster than normal. P.S. In level 4-4 i lose a life but the longplay is still considered a "no-death" run because the game cannot progress unless a life is lost at that specific point.