What do you want now? (Request extensions here)

[Kumirei]

This is the closest existing script

WK Reviews: The Final Countdown (userscript)

This is a third-party script and is not created by the WaniKani team. By using this, you understand that it can stop working at any time or be discontinued indefinitely. Do your reviews sessions just take way too long?  Do you want an extra push to go quicker?  Maybe you want to really test your recall—you think, “If I don’t know this right away, then I don’t know it at all.” Well, now there’s a script for that. Following up on a request from this thread, I present a simple countdown timer…