this was my first super mario world hack rom, I hope you like it! this kaizo is not very difficult.
The overworld and exit count leave a lot to be desired. Lack of a decent life system or retry will make a lot of players turn away, especially since the first two levels don't save and if you game over you lose all your progress. There were some moons you could farm halfway through the 1st level but that shouldn't be required.
For a first hack the levels weren't bad they just weren't that great either. Pretty basic kaizo manuevers like shell jumps and bubble jumps just placed throughout.
I did find a significant amount of level breaks.
Yoshi Island 1-
(minor) Cutoff in the water on the 2nd half
(minor) You only need one shell to shelljump the double shell jump part or you can just reuse the goombas.
Carrying an item to the end lets you take a mushroom out of the level, but I didnt really find a good use for it. Good to know for future hacks.
Yoshi Island 2-
(Major) You can skip the p switch section by shell jumping over top the level. You even made the player jump over the top in the previous level, so this seems like a strange oversight.
(Major)You can also keep yoshi at the end by jumping over the pipe, not that it helps but you also skip the ditch jump.
Final - Bowser- 2nd half of the level is a pretty obvious edit of Iggy's Castle autoscroller with some added munchers. Levels should be made from scratch.