Well, I see that the enemy of this run was exactly the fact that I tried to show as many things as possible, instead of showing the most interesting things in a smaller run. 95% of the problems cited were caused by this enemy.
I was forced to do lots and lots of things that I didn't want to simply because I wanted to show as many things as possible.
- A run with 90/95% of all existing glitches in Super Mario World could not be less than 3 hours, unfortunately.
- I was forced to stay with Yoshi 90% of the time because 95% of all glitches are done with him. So if I were without him, a lot of things wouldn't be shown.
- I was forced to waste time going back through the map, going back within a few levels, and entering levels more than once to show specific things that depended on it.
- I was forced to play the entire game, pretty much every level, including boring auto scroller or underwater levels because obviously I couldn't show all that a game has to offer by playing just half or a little more than half. Some levels should have been avoided because they were boring, but I was forced to play them so as not to spoil the route.
- I was forced to show the mosaic effect more than I would like because I have no way to remove it other than restarting the game or entering a boss. If I restart the game earlier than I should, my route would be totally ruined.
So, I had to do lots and lots of unwanted stuff towards the goal of showing 95% of everything Super Mario World has to offer. In fact, many, many glitches were shown in this run, including many that were never seen, however, unfortunately, entertainment had to be sacrificed at times for this.
Lastly, I agree with some things that could be avoided here.
- The 30hz item box trick was used a lot. After watching the run a few times, I noticed it got pretty repetitive, but unfortunately I didn't notice it while doing the run.
- Maybe I used start a lot to show things not so interesting.
- I also took a while on some levels where they could be done much faster.
Thanks for all the comments and for all the observations made, I'm learning a lot from this! And sorry for the bad english ☹