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The bugs/glitches are credited whenever possible. Uncredited bugs/glitches can mean one or more things: 1) Found in a Nintendo publication; 2) Found by TMK, but believed to be too common to give credit to one person; 3) Older glitch with an unknown source.

New bugs added on 01/06/2020: Super Mario Bros. 3 (1)
New bugs added on 11/15/2018: Super Mario All-Stars [SMB3] (1)
New bugs added on 02/16/2015: Donkey Kong (NES) (1)