This simulator will familiarize you with the controls of the actual interface used by NASA Astronauts to manually pilot the SpaceX Dragon 2 vehicle to the International Space Station. Successful docking is achieved when all green numbers in the center of the interface are below 0.2. Movement in space is slow and requires patience & precision.
It sounds like you’re referring to a long-running rumor or a fan project. To clarify for anyone who might be searching for it:
The original trilogy ( DKC1 , DKC2 , DKC3 ) was developed by Rare and released on the SNES in the mid-1990s. A fourth mainline entry didn’t appear until Donkey Kong Country Returns (2010) on the Wii, and later Donkey Kong Country: Tropical Freeze (2014) on Wii U/Switch.
Downloading copyrighted commercial ROMs (even for old games) is legally gray-to-illegal in most regions. Fan hacks typically require you to own and dump your own copy of the base game.