She loves wordplay.

Literal

She [topic-は] word-play [subject-が] like.

ことば遊び ('wordplay, language game') is a transparent compound: 言葉 ('word, language') + 遊び ('play'). It covers the full range of verbal games — puns (駄洒落), riddles, palindromes, verse-capping (連歌), and the kind of clever phrasing that depends on multiple meanings or sound similarities. Japanese has a particularly rich tradition of wordplay, helped by the abundance of homophones from kanji, the layered hiragana/kanji writing system, and the long literary heritage of verbal art forms — a fertile ground for puns.