List of Super Mario Bros. glitches

I was testing out my emulator by playing levels of Super Mario Bros when a trampoline disappeared on me. When I jumped on the spot where the trampoline should have appeared, Mario got stuck.

After spending an hour trying to reproduce the issue so I could debug what was wrong, I discovered that it was a very real glitch in the game. Hence, I decided to post the link below to warn future developers of the surprisingly large number of glitches in a classic game that I thought I knew well:

http://www.mariowiki.com/List_of_Super_Mario_Bros._glitches

All games have bugs. SMB's just had a lot more testing than most games, so some pretty deep ones have been caught.

I challenge you to find one that ShaneM hasn't fixed in his extensive mod project.