Please read this: when you play and complete jobs,you can't use the next button,but when you do ALL jobs and play 1 time the endless defense,you can replay all mision whit the same rewards and now you CAN use the next button. The button works,but you need to complete all the jobs.
 "The Gun Game 2"){kind=icon}
 "Zombie Survival"){kind=icon}
 "TDP4 Team Battle"){kind=icon}
 "Doodle Devil"){kind=icon}
 "Awesome Dress Up"){kind=icon}
 "Final Ninja"){kind=icon}
 "escape please"){kind=icon}
 "Escape From Backwards Land"){kind=icon}
 "The Eternal Battle"){kind=icon}
 "Electricman2HS"){kind=icon}