My special edition Pokemon Game Boy Color.
Pic from google
i still have mines(no back cover though)
Mine didn't have the back cover either.
I smell a plot here.
If it's any consolation, I've lost every game I ever had beaten for it (except A bugs life and a broken yellow version). Now that I think about it, every game i have ever beaten period has either been lost, stolen or damaged beyond repair.
One time when I was working Cart Attendant, I had my case with my 3DS games (about 6 at the time) in my back pocket. As I was circling back, I saw it on the ground, and it had been ran over. Every game was destroyed.
Hence my movement to purely digital only games. Fuck cartridges.
One thing that I'll never lose is my virginity.
I left my copy of Pokemon Silver in a hotel on a family vacation to Ocean City, Maryland. Lost all my Pokemon, including the ones I transferred from Yellow.
Then I dropped my Yellow cartridge and it won't boot anymore.