Nintendo video game consoles
Although the company had earlier released Color TV Game and Game & Watch, which were their first and second systems respectfully, they did not achieve worldwide success until the release of the Nintendo Entertainment System (NES) in 1983. The NES restarted the video game industry after the video game crash of 1983, and was an international success. In 1989, Nintendo released the Game Boy, which became the first handheld console to sell in large numbers. In the early 1990s, Nintendo's market lead began to decrease; although the 1990 Super Nintendo Entertainment System (SNES) was a strong seller, the Mega Drive/Genesis was a very strong contender. Nintendo and Sega would both lose a significant portion of the console market towards the end of the 1990s, as Sony Computer Entertainment's PlayStation became the most popular console, beating the Nintendo 64, though Nintendo managed to sell more than Sega Saturn.
SNK
In response to strong sales of the company's NES ports, SNK began to dabble in the development of original software designed specifically for the NES console. Two games came out of this effort: "Baseball Stars" (1989) and "Crystalis" (1990) (known as "God Slayer" in Japan). 1989 also marked the release of two new home video game consoles in North America: the Sega Genesis and NEC's joint project with Hudson Soft, the TurboGrafx-16. Nintendo followed suit with a new system in 1991, the Super NES. Rather than become involved in the early 90s system wars, SNK Corporation in Japan, along with SNK Corporation of America, chose to refocus its efforts on the arcade market, leaving other third parties, such as Romstar and Takara, to license and port SNK's properties to the various home consoles of the time with help from SNK's American home entertainment division. With console ports mainly being handled outside the company, it moved on to developing SNK branded arcade equipment. SNK also licensed Tiger Electronics to market handheld electronic games from some of its brands.