Do you have more information regarding the cancelled Saturn version of Ninja? I can't wait, providing this is what you were hinting at! Anyway, Core Design is known for scrapping all plans for Ninja on the Saturn, but in reality it shelved both this and the PlayStation edition simultaneously because of quality issues. While the former was only briefly restarted due to Core's imminent dropping out of the Saturn market, the latter was fully remade in a similar fashion to what Capcom did with the Biohazard 1.5 prototype. I've not seen much of the original Ninja apart from a few screenshots here and there, but there's little doubt just how much of a letdown the final game was - whether or not Core made a mistake in rebooting its development remains to be seen, though I'm not really holding my breath either way should any new details about the later Saturn build surface. Ninja was never Core's finest moment in the 32-bit era, which I believe was indeed the original Tomb Raider... even with its occasional polygonal glitching!