Like the GB version of Donkey Kong? The game starts out like an arcade port, and then the game unveils to be a full games with multiple worlds. I think it would be a great game. I'm thinking it would be better as a downloadable title.
Argh god damn these forums. I wrote a near identical post before you and then the forums literally died and I was unable to post it. It'd have to be 3D though, not a straight port. I'd love to see the original in 3D.