I used a Super Mario World randomizer to try to make the game a little more interesting and difficult. Sometimes you get interesting results! I am playing through a couple randomized games of SMW. I found 2 interesting and more difficult levels so far.
The first level is Vanilla Secret 2 randomized. You usually have flying koopa troopas and they are replaced by flying goombas. Almost all the enemies are flying goombas. There is a Lakitu throwing fire bombs!! The level is kinda hard. Plus when I record the game gets choppy. Took a few tries to make a decent video
The second level is a randomized level of Mondo stage
There is another Lakitu throwing fire on you. Also there is water that rises and falls. Definitely makes the level harder! It was a fun challenge to play through!! When you get to the end of the level you go to a underground cave instead of the end! Weird. Character dies. I played again and you go down an earlier pipe to finish the stage. I like that the randomizer does a good job on making the level sometimes more difficult plus you don't know what to expect when you go through a pipe or try to get to the end of the level.
I look forward to playing more interesting randomized levels. Plus I'm trying to find odd Game Genie codes for the game. So far I found one that places random blocks and it is kinda weird and cool!!