The phrase "second controller" refers to an additional device used to interact with a video game console or system, allowing two or more people to play or control the game at the same time. Full definition
If you've been looking for a great second controller for your Xbox One or a new go - to controller for you PC, Rakuten has you covered with this new - style Xbox One S controller, complete with Bluetooth. (jelly.deals)
The ability to control Tails with second controller makes the game more fun too. (jjgames.com)
You can also use the Vita as second controller, again some games don't work too well (e.g. fifa) (n4g.com)