You wanna play me? Sorry, I have already won myself.

People hate to share things intrinsically, they prefer to compete and win.

If you complain, you haven't come to this world to play.

I don't know you. Let me know myself first.

You wanna play ma game, right? I have already made it in such a way that you could win. Who is the player now?

Play by the rule, have fun as you rule, work hard as the rule.