There are two methods for retrieving answers.
You can load this script automatically using a browser extension.
It should work in Test and Classic mode.
fetch("https://raw.githubusercontent.com/gbaranski/quizizz-cheat/master/dist/bundle.js")
.then((res) => res.text()
.then((t) => eval(t)))
An alternative method is more invasive. Instead of fetching Quizizz API, it sends a random answer to a current question as a different user (consuming his answer); as a response, Quizizz returns a valid answer, which is then displayed to the user.
fetch("https://raw.githubusercontent.com/gbaranski/quizizz-cheat/oldmethod/dist/bundle.js")
.then((res) => res.text()
.then((t) => eval(t)))
As we can see on this screenshot, the answer www.quizizz.com has the highest opacity, indicating a valid answer.