The newest introduced bonus variant seems to be the second chance bonus. To explain how this bonus works, we went looking for some examples of casinos that already offer this bonus.
If lady luck hasn’t been on your side when playing with your own cash in their casino, Mr Green allows you to add a little luck of his own by giving you his Second Chance Bonus. That means that once your own cash is lost, you start to use Mr Green bonus cash.
The bonus cash has to be played/wagered, usually 35 times, before it can be withdrawn as real money.
Every slot spin you make when using bonus funds will count towards meeting the wagering requirement and your progress will be shown in the wagering bar. Meet the wagering requirement and the money is yours.