Simplify the following text for a Grade 6 native English-speaking person.
Original: The three remaining contestants ' balls are put back into the ball machine , along with two more cash balls chosen at random from the Golden Bank , as well as one more Killer ball , leaving fifteen balls in play .
Simplified: The 3 remaining contestants ' balls are put back into the ball machine by Amanda . 2 new cash balls and 1 killer are added into the game .