A classification listing for NES title Ninja Gaiden III: The Ancient Ship of Doom points to a possible release on the Wii U Virtual Console.
Originally released for NES in 1991, the game was also made available on the Wii Virtual Console in North America in 2008.
The classification was submitted by Nintendo Australia Pty Ltd, resulting in a PG rating.
Nintendo hasn't officially confirmed its new plans for the title, though the classification coincides with the Wii U Virtual Console launch in the US on April 23. Confirmed games include Super Mario World, F-Zero and Super Metroid.