Yes, there are graphics that clash, but people have said it generally looks nice anyway, and hey, the point of this hack was for me to try and make a hack which wasn't just Super Mario Bros 3.5 like too many released nowadays.
So this is the result. I also tried to mix graphics that nobody has ever thought of mixing, requiring hours of manual palette editing as a result.
Custom sprites (including bosses)
Graphics (foreground and background)
Music (using NSPC patch)
Intro/title screen level/bonus game level (because I was bored)
Overworld sprites (SMB 3 hands, Final Fantasy save point, Donkey Kong Country navigation arrows)
Hex edits (generally minor, although you'll still notice them)
Ending/credits (albeit few)
Custom Blocks (saw no point in them here)
Cluster/Dynamic sprites (the hack in general keeps sprites to a minimum)
Story (this is a Mario hack. It doesn't need a Final Fantasy style RPG storyline)
Overworld events (meh)
It can also be used as a base hack, for anyone too lazy to add in Donkey Kong Country and Yoshi's Island graphics, or who wants to use the same combinations of foregrounds and backgrounds for whatever reason. The folder comes with a list telling you what map16 pages refer to what, what ExGFX files refer to what, hex edits made, custom sprites used and other stuff.
Note: Anyone wanting to use as base hack should hold off adding custom sprites until Dahnamics releases Clawgrip, Larry and Mini Necky sprites at this year's C3. They'd also have to make the Mad Jack Ultimate N00b boss sprite from scratch, because I kinda lost it.
It's a really short hack, not meant to be particularly difficult and could probably be LPed in about two or three videos.
I have no idea whether I'll ever submit this to the hack's section.
Now awaiting moderation!
For gaming news and Wario discussions, check out Gaming Reinvented and Wario Forums respectively.
As for Mario's Nightmare Quest? Well, it's currently on Fusion Gameworks, ROM Hacking.net or the GCN at the moment.