I didn´t pay much attention to this hack until i played your submission, but this definitely deserves attention. The level design is overall decent and the hack varies its gimmicks and comes up with creatives obstacles.
However there are some minor flaws I´d like to mention:
1.) The first one is that you maybe want to try to work on your text-palette on your title screen. The way it is coloured currently it´s quite hard to read.
2.) You can stand on these "pointing to the left signs". I don´t know if this is intended, but i think it would be better / more logical if they weren´t solid.
3.) Once i beat "All cats go 2 Hvn" a level point appears on the map (see the bottom half). From what i´ve tried i canot enter this level, so i guess this is a leftover event from a "previous version" which you didn´t delete.
4.) Custom palette and vanilla mix:
This is no real flaw, but i noticed that some levels have quite well looking custom palettes whereas others are completely vanilla. I don´t know the purpose of that, but if you update your hack, maybe you want to give every
Level a custom palette. Of course these shouldn´t be eye-searing, but if you can manage to create palettes of your current standard I´m sure the other levels will look decent as well
5.) Difficulty spikes:
This hack is a well made kaizo-light hack, but some levels or some parts of a level sometimes have a high difficulty peak compared to the others. The first Level that comes to my mind here is "Bill Kaizo". I had way more problems to clear this one than any other level. Perhaps you want to replay your hack yourself again and note down where you die more frequently compared to other parts. Parts which are exceptionally difficult for you - the auther who knows how every part was planned - may be really hard to pass for players which don´t know the inteded way to pass them.
Apart from these few and quite minor things this is a really good and well made hack overall. You didn´t fail to create a hack similar to your inspirations in regards of difficulty, level-design and creativity