No-glitch run of SMB2 for the NES by Chris K. Go Subscribe to his channel to support him! http://www.youtube.com/user/CAKmusic/videos?flow=grid&...

Author's comments (paraphrased):

SDA speedrun History:
July 4 2005, 10:55, Tommy Montgomery
July 23 2005, 10:25, Scott Kessler
August 1 2005, 9:42, Scott Kessler
August 4 2006, 9:19, Chris Knight
June 13 2007, 9:15, Andrew Gardikis
November 18 2012, 8:52, Chris Knight

Basically there are two mistakes in this run. In the next to last room in 7-1, I had a little "trouble" with the ladders; this is one of maybe 5 parts in the last two worlds that gave me consistent trouble during practice. I estimate that a ghastly 3 or 4 seconds were lost there. In the final room in 7-2, I was a little late throwing the 5th vegetable, which resulted in brief slowdown. Maybe 1/3 of a second was lost. I didn't use any glitches, which cost me 4 seconds in 1-1. If I do another SMB2 run, that will probably be fixed. Source: http://speeddemosarchive.com/Mario2.html

Download the run here http://speeddemosarchive.com/demo.pl?Mario2_852
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The second U.S. installment of the Mario series, released in October 1988, was not the series's actual second game but a reworked "Doki Doki Panic". You can play as any of Mario, Luigi, Toad or the Princess, each of whom have slightly different abilities. Journey through Mario's dream with creatures that would reappear in later, non-imaginary, Mario games. Source: http://speeddemosarchive.com/Mario2.html less