One hack that definitely should have been finished was yoshicookiezeus' The Cookie Crisis. I haven't seen anyone mention it in a looong time, but it has very tight level design centered around mostly vanilla gimmicks, relying heavily on creative map16 and exanimation. Aesthetically, the hack is somewhat unique for a vanilla hack and uses custom drawn tiles throughout, something I wish newer hacks would do. The palettes are generally more saturated than those in newer hacks, which may be good or bad depending on your tastes, but I think they lend some charm to this hack.
The Artifacts of Marvelous Birds is another hack that's been dropped and I really wish it had been finished. The story centers around Mario saving kidnapped birds from Bowser and recovering their stolent magical artifacts. My own hack was partly inspired by it.
The Artifacts of Marvelous Birds is another hack that's been dropped and I really wish it had been finished. The story centers around Mario saving kidnapped birds from Bowser and recovering their stolent magical artifacts. My own hack was partly inspired by it.