Arika is a Japanese video game developer and publisher. It was formed in 1995 by former Capcom employees. It was originally known as ARMtech K.K, but was later named Arika. The name of the company is the reverse of the name of the company's founder, Akira Nishitani, who along with Akira Yasuda, created Street Fighter II. Arika's first game was Street Fighter EX. It was successful and was followed up with two updates (Street Fighter EX + and EX + α), and its two sequels Street Fighter EX2 and Street Fighter EX3. In 2018, they released a spiritual successor to both Street Fighter EX and Fighting Layer (published by Namco), titled Fighting EX Layer. From 2019 to 2021, Arika collaborated with Nintendo to create the battle royale games Tetris 99, Super Mario Bros. 35, and with Bandai Namco for Pac-Man 99. Arika is also known for the Tetris: The Grand Master series, the Dr. Mario series, and the Endless Ocean series.