Run starts just after 8:32 (trimming it made me lose 60fps framerate).

Deathless sub-58 finally. W2 mvmts-of-2 mostly; good W3; lost an eternity in W4; good W5; W6 some mistakes in 6-1, 6-6 and 6-10; 11-try 7-1 and still saved time by playing 7-9 normally, also got the pixel for 7-7 clip but missed it...lol; W8 Bowser's Castle was shaky. Offline run.

Played on an NES with an SMB3 left bros. cart.