Don't worry, if the game gets badged after you've already finished it, all you'll need to do is to reach the main menu again and you'll gain the badge istantly! :)
Ummm I think I killed the boss (The giant eye) but is there another boss after or something? Because I'm not sure if I don't have connection or if I didn't finish
 "ZS Dead Detective - A cat's chance in hell"){kind=icon}
 "The Grey Rainbow"){kind=icon}
 "A knots story"){kind=icon}
 "Aground"){kind=icon}
 "Coma"){kind=icon}
 "Clarence's Big Chance"){kind=icon}
 "400 Years"){kind=icon}
 "Wasted Youth, Part 1"){kind=icon}
 "The Love Letter"){kind=icon}
 "The Last Door - Chapter 1: The Letter"){kind=icon}
 "Level Up!"){kind=icon}
 "Seedling"){kind=icon}
 "Fracuum"){kind=icon}
 "Pirates of the Undead Sea"){kind=icon}
 "Try This Room Escape"){kind=icon}
 "Swords and Souls"){kind=icon}
 "Bit Blast"){kind=icon}
 "Ray and Cooper 2"){kind=icon}
Don't worry, if the game gets badged after you've already finished it, all you'll need to do is to reach the main menu again and you'll gain the badge istantly! :)