Some of the levels have differences as far as how the levels are built. In the Famicom version you regain a heart after beating a level and due to this and level design differences the game overall is easier.

Tell me a mod didn't verify the run without telling me a mod didn't verify the run.

I first watched Fruitbats tutorial then was introduced to #thighcam himself Andy and watched his 7 hour YT tutorial about 3 times over a couple days while working so I had a pretty good idea of what/where to go/do I just had to figure out how to do it myself.