METRO: Last Light (A.K.A Last time I’m ever buying anything from apple store)

I bought this game last night and it just (sucked), I downloaded and did everything sept by sept the game started up just fine but when I get to the main
menu I can not even see the littering on the screen all I see are spots of white black and gray. So who ever made this game I WANT MY MONEY BACK!!!!!

(DO NOT BUY IT ) RIP OFF about Metro: Last Light