As others have said, arrays are horribly important (couldn't find another word lol) in game development. Even if you write a command line interface game, you'd still (70 - 80%) need arrays. For example if you are writing a Tic-Tac-Toe game, you'd need arrays for the board.
As you'll see here: https://bitbucket.org/StormboyXZ/journey-to-mars/src/e0eb91cb3129b13fa19989970e407ba9c2cd2a81/main.cpp?at=default
(one of my old 2D game that I've written) on line 80 that there is an array declared which stores the enemies. Arrays are used in this case because a fixed number of enemy objects had to be stored. You'd use other containers like Vectors (kinda similar to arrays) to store an unfixed number of things.
(You should in no way take pointers from that code lol, it was my first 2D game and I've written it in an unorganised way.)
of the things you'll need in game design:
-> Arrays/Some other container
-> Random number generation
-> If/Else/Switch statements
So yeah, my point is that they look boring now, but you'll find yourself using arrays a lot more than you expect once you start doing some small projects or solving some problems. Therefore, don't skip it (TBH, don't skip anything).
Good luck! :)
EDIT: Punctuation marks xD