Glass House - Six contestants were brought into the Glass House, also known as the BB Bubble, for seven days. During that time, Brazil was able to vote for one man and one woman to become a houseguest on the season. Kamilla Salgado and Marcello Soares won the vote and entered the house during Week 2.
Veterans vs. Newbies - During the first HOH competition, the veterans and the newbies were split into two teams. When a houseguest of either team wins the HOH competition, then all members of that team are safe from eviction.
Power of No - Introduced in previous season, the Power of No still gives the winner the opportunity to disqualify a number of people (previously determined by the producers) from competing in the Head of Household competition alongside the previous HoH. This season however, started on week 4, the vetoed housemates could remove themselves from the block and compete for HoH if they win the Save Me Challenge.