"Super 3D Noah's Ark" was one of (not the only, but one of the very few) the unlicensed games released for the SNES. It was from a company called Wisdom Tree, who also released unlicensed NES games like "Bible Adventures" and "Sunday Funday", who licensed the mazes and code for Wolfenstein 3D from id Software. Players shot food at little goats that escaped from their pen. Nintendo never sued the company because almost all of their games were religious games (they even released Game Boy Color "games" that consisted of nothing but the text for the King James and New International versions of the Bible) and it they didn't want to worry about the publicity. This info come from the excellent book "The Ultimate History of Video Games" by Steven Kent. The company eventually shifted its focus to PC games.
Anyways, the SNES version of ZAMN did have some blood removed and other blood changed to green. This was standard for the time per Nintenodo's orders. As Mop said, after the ESRB was formed, Nintendo dropped these restrictions. This resulted in the SNES version of Mortal Kombat II having all of the blood and fatalities in the game and the SNES version crushed the Genesis version in sales.
No company was ever legally able to release illegal games (which unlicensed games are) for the NES. Nintendo sued and won against most of them. As I mentioned above, the main reason Nintendo didn't sue Wisdom Tree is because they didn't want to worry about possible bad publicity for suing a company that published religious games (another is that most of their games came out in 1992 and later, after the NES was fading away and the SNES was in full swing). All of these companies releasing unlicensed games were breaking the law as they were violating copyrights and patents.