And now, I'm going to comment on the pictures.
I love these kind of cave submaps, nice palettes you used there.
This looks really nice, too. The palette may be a bit to bright, I advice to make it a little bit darker.
Nothing really special here, the transparent water is pretty cool.
Another nice submap, good looking, but make the palette a bit darker as I mentioned.
Not really much to say, this pipe-with-lava-coming-out thing has been done several times.
Just looks like a good enough ice level. No bugs.
Just a simple cutscene, the palette for Mario's render looks good.
You actually get to fight Mario? Now that is actually a good idea, nice job!
The message would be better if it was written like this, IMO:
Rex, Bowser and his minions are taking over my world. You must stop him, who knows what he's up to.
Nice castle beat message, keep it.
This hack looks pretty good, I'll play it when it releases.