This captcha forces you to do 10 squats to continue.
This demo works with chrome/firefox, desktop environment and also a webcam.
https://vivirenremoto.github.io/squat_captcha/sample-form.html
https://chrome.google.com/webstore/detail/squat-captcha/imflbohnilnolfogbakfmahmjmbejinm
https://dev.to/vivirenremoto/the-hatest-captcha-ever-squat-captcha-4bei