"因為妳值得" = Because you're worth it. when she thanks you for receiving a gift( bcz you mentioned game ) or something, you could say so instead "you are welcome". It's also a make-up advertisement slogan.

Maybe you can try 哈哈 or 黑白黑白我勝利

There was an impressive sloagn in some OLAY commercial: 台灣女孩 + 都 + 像你 + 這樣年輕 + 嗎？ Taiwanese girl(s) + all + like you + this young + tail aux. for questioning Are all Taiwanese girls this young like you? You may replace 年輕 'young' with whichever adjective ** that you want to joke around. Hence, 台灣女孩 + 都 + 像你 + 這樣 ** + 嗎？ Are all Taiwanese girls this ** like you? :-)