Ben 10 is an unlicensed Russian Sega Mega Drive port of a beat-em-up for Java phones Ben 10: The Power Of Omnitrix, based on the TV series of the same name. No developer credits exist in the game, but several elements point it to having been made by BMB.
Shooter / Platform / Action / Science fiction
Released in 1997 on Family Computer, by Super Game.
Released in 2003 on Game Boy Advance, by Vast Fame.
Shooter / Platform / Action / Science fiction
Earthworm Jim 2 (蚯蚓吉姆2) is an unlicensed port of the game of the same name, made for the Famicom by a team of (or at least related to) Ex-Sachen developers and published by Ka Sheng in 1996.
Super Mario World (超級馬里奧世界) is a bootleg port of the SNES launch title of the same name (Super Mario World) developed by Hummer Team and released in 1995. This is one of the more well-known examples of bootleg ports to the Famicom, as it comparatively manages to retain most of the original SNES game's elements.
Platform / Science fiction / Comedy
Spacegulls is cute platformer featuring birds in space developed for the NES. It is best described as a combination of Joust and Mega Man. 1-2 players The first version of Spacegulls was made in 1 week and won 1st place in the NESdev Compo 2020/21.
Shooter / Platform / Action / Science fiction
Homebrew version of Mega Man 2 for TurboGrafx 16/PC Engine
Shooter / Platform / Action / Science fiction
Released in 2020 on Game Boy Advance, by Golden Warrior.
Shooter / Platform / Action / Science fiction
Released on Super Nintendo Entertainment System, by Infidelity.