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Moterola
the first mobile phone released was by Motorola in 1973 it didn't have apps on it yet but it revolutionised modular calling devices
https://www.uswitch.com/mobiles/guides/history-of-mobile-phones/#:~:text=Motorola%2C%20on%203%20April%201973,or%20Zero%20Generation%20mobile%20phones. -
tertis
Tetris was the first ever mobile game it was available on the Gameboy in 1984 and is also the most sold game according to the Tetris company its sold over 520million copies
(https://www.ign.com/articles/best-selling-video-games-of-all-time-grand-theft-auto-minecraft-tetris) created by IGN -
pokemon red and green
Pokémon red and green released in February of 1996 in japan on the Gameboy releasing in different countries around 3 years later however didn't release in Taiwan or Hong Kong till a decade later they were the groundwork for one of if not the biggest franchise of games in the world
(https://bulbapedia.bulbagarden.net/wiki/List_of_games_by_release_date) -
Blue
Pokémon blue was released at a later date than its rival games but like the others same game minor changes
(https://bulbapedia.bulbagarden.net/wiki/Pok%C3%A9mon_Blue_Version_(Japanese)) -
Snake
Snake was the first ever mobile app on a phone back in 1997 on the Nokia 6110 which included a built in version of the game
(https://inventionland.com/blog/the-history-of-mobile-apps/#:~:text=In%201997%2C%20the%20Nokia%206110,consider%20the%20first%20mobile%20app)) -
Yellow
Pokémon yellow was released 2 years later still on the Gameboy and was the only game to not have a starter choice and the only way to evolve the starter was to trade it to a different game and trade it back once evolved
(https://bulbapedia.bulbagarden.net/wiki/Pok%C3%A9mon_Yellow_Version) -
GameCube