(user is banned)
Now I get it. So you're restricted by the emu, the computer and the console. Now I get it.
Quote from LifeMega:
You can't put 16-bit sprites on an NES hack and run it in an NES emu. It wasn't designed to run 16 bit things. It wouldn't be NES anymore either.
They did it with "Mario is Missing" but that turned out terrible.
But it would, simply, overload and cause massive slowdown. Metroid Slows down with little enemies on the screen.