Popular games published by company J.Y. Company

Mi Hun Che (迷魂車), more commonly known as BB Car (屁屁車) or eventually Ecstasy Car and Super Car (奇妙車) is a port of Rally-X and New Rally-X made for the Famicom by Hwang Shinwei in 1988. It was originally published by Chi Chi Toy Co., Ltd under the Mi Hun Che and Super Car title. BB Car is a slight update released 3 years later, in 1991.

Final Fight 3 is a pirated port of the SNES game of the same name, made by Hummer Team in 1998. This is Hummer Team's last game published under J.Y. Company. This is a direct port of the SNES game. All four playable characters from the original game are present, as are most of the enemies, bosses, and rounds. However, the weaker enemies appear throughout the whole game.

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.

Aladdin is a port of the SNES version of the game of the same name, made by Hummer Team in 1995. The game is one of the more well known pirate ports and is commonly found on multicarts (in its MMC3 hacked form).

Mortal Kombat II is an unlicensed port of Mortal Kombat made by Hummer Team. Both Kart Fighter and AV Bishoujo Senshi Girl Fighting, which were released later, use an earlier version of this game's engine. Despite the title, this game is actually a port of the first Mortal Kombat. This was likely done as a form of selling the product as a sequel, a common trait with unlicensed NES games. While the game is mostly faithful to the original game graphics-wise, some features were cut from the game. These include fatalities and blood which are found only in Mortal Kombat II Special. Also Goro is the same size as the other characters, probably due to the NES's limitations.

An unlicensed NES game based on The Jungle Book.

Donkey Kong Country 4 is a pirated port of Donkey Kong Country from 1994 for the SNES, made by Hummer Team in 1997. The gameplay, graphics, and sound are similar to the official Game Boy Color port of Donkey Kong Country, albeit downgraded to work on the Famicom. It's often considered to be significantly superior to other pirates based on the Donkey Kong Country series.

An unlicensed port of the PlayStation version of Tekken 2 for Nintendo Famicom by Hummer Team in 1996.

Mickey Mania 7 (米奇吉鼠) is a pirated port of Mickey Mania: The Timeless Adventures of Mickey Mouse, released on the Famicom. It was developed by Ei-How Yang in 1996 and is the second game that was developed for J.Y. Company.

Mortal Kombat II Special is a pirated fighting game developed by Hummer Team and published by J.Y. Company. It is based on Mortal Kombat II. The fighting engine is modified from Mortal Kombat II, altering the special moves to make them function like they're supposed to and adding blood. The fatalities, however, are still missing from this game, with the fight simply ending when you win.

Dragon Ball Z: Super Butouden 2 is a port of the SNES game of the same name, made by Hummer Team sometime during the 90s. This is one of many pirated fighting games on the Famicom to use the Street Fighter II Engine. Unlike most Hummer Team games, it is in full Japanese as opposed to English. The story was completely removed from this version. However, the Arcade, Versus and CPU vs CPU modes are present. The characters are fought in a random order, and are always fought on certain stages. The graphics and music are taken from the original game and simplified, with some characters sharing stages. Many of the stages themselves use multi-layered scrolling. The forest stage's theme, which is Bojack's theme from the original game, was reused in Tekken 2, another game by Hummer Team. The ending is taken from the original game, albeit without the credits.