Honestly, I don't mind if there are floating and stacked munchers in a hack, as long as they are not used excessively.
This hack is a great improvement over your previous ones but it still has issues, most of them game-breaking (not to mention they are still there from last time). I can get to all the levels easily since the paths are open.
Navigation was pretty breakable though. I could double-grab both the springboard and the shell and enter on the pipe at the beginning of the level (besides, you could use both of them for something later anyways). I had that same issue of the door, whenever I activate the colored blocks in the correct order it gives a weird effect, thus making it impossible to progress. Double-check your levels to see if everything is working correctly!
Because It's Kaizo has some camera issues; the latest version of LM enables you to move Mario anywhere and it also fixes those issues. The blocks appearing at the bottom row are rather annoying though, as I cannot foresee where can I land.
A Trip Back to SQW doesn't really have anything new. It is just run to the triangle, take the springboard to get to the P-switch (and the shell is not even neeeded) and press it to the goal. Also, why is it slippery?
Patience has some standard balloon riding, but as soon as I get to the second part I cannot proceed because the second blocks has wings inside.
I may have focused on bad aspects on my review, but that doesn't mean this hack is not fun. Of course, there are some pretty good parts but there are also bad ones, and that is a thing that should definitely be fixed. Test your levels more than normal levels, and prevent noticeable breaks. Hope to see an improved version sometime!