A game of kanji-based words.
The word lists are taken from https://en.wiktionary.org/wiki/Appendix:JLPT
Copy the words like this:
copy(JSON.stringify(
(document.querySelector('#mw-content-text ul')
.textContent
.split('\n')
.map((word) => word.split(' -'))
.map((pair) => [ pair[0].split(', ')[0], pair[0].split(', ')[1] || '', pair[1] ])
.filter((word) => word[1])
), null, 2))