definitely remember this thing, one of my friends from middle school snuck in his during bathroom break to show off all the features. i know mezase master did an article of it too and including a hidden earthbound track. my local gamestore actually has two of these things in plastic bags for the price of $2.99
I thought it was the greatest thing ever when I got it. At one time, the Game Boy Camera actually was the world's smallest digital camera. I still have mine. Here is a picture I took of myself using it when I got it haha
I still have my Game Boy Camera! Been a while since I used it, but I definitely WILL use it again at some point! It is still one of my favorite cameras the same way the Neo Geo Pocket's built in alarm clock is still one of my favorite alarm clocks!