This post should explain in great detail the answers to your exact question above. The main takeaway is the use of userscripts. I don’t think it’s possible on the vanilla version, but I’ve yet to see Level 60 posts in a year from people who are not using userscripts.
But just keep in mind that this is BEFORE the Kana-only vocabularies were added, and Wanikani seems to want to add more than just 60 Kana in the future to reach the aim of “making reading Japanese easier”. I think it’s probably only possible now if you hardly make a mistake to avoid getting the pesky repeating leeches.