Can i make google reCaptcha 2.0 only show the checkbox every time

I'm working on a voting application where people can vote as many times as they want, and i would like to have a reCaptcha checkbox in it, but rather than making people have to fill check the images thingy after a few votes, i'd rather have them just have the fill the checkbox every time.

I tried changing the security level to the lowest setting but it keeps showing the test after about two or three votes.

I know it's not a very good idea security wise, but it just doesn't feel good to have people check several images every time rather than just clicking it once which would already to some fine help holding back spambots.

I'm working on a Django application and implemented reCaptcha with Django-reCaptcha 2 .