Two can play at that game
Definition 1 of 1
Pro Tip 1/3Retaliation Intent
Implies intention to do the same thing back to someone as they did to you. 
She didn't invite me to her party, so two can play at that game - I won't invite her either.
Pro Tip 2/3Warning Message
Used to warn someone they're not the only one capable of a certain action. 
He started spreading rumors about me? Two can play at that game.
Pro Tip 3/3Not Literal
The phrase is figurative; it doesn't always involve only two people or a game. 
If she's being cold towards me, two can play at that game, even with our friends around.