for other remarks, in that one level where there is a "P-switch jump" at the end of it just before the goal tape, it is possible to just carry the P-switch and cross the goal tape with it to get a mushroom, and start the next level as big Mario, an easy fix would be to put an invisible line of 1F0 blocks 1 block high from the ground behind the goal tape, that way it doesn't mess with the aesthetics of the level, and makes it impossible to collect the mushroom, also there is a typo in the hack's name in the post game credits, it is written as "Interesting Kaiz world", other than that, keep up the good work.