So I'm not sure if the Classified Badges are relevant here, but I decided to look into them.
Besides the one that I discovered 2 years ago using the Konami code, named "Oh Come On", there are 3 others that still haven't been discovered as far as I know. The only information I obtained regarding them is their names, which I found through the elements console or whatever it's called (Ctrl+Shift+C on the website). The dice is called "Lucky", the key is called "Picked", and the Assassin Logo is called "Devoted". If anyone is still interested in finding out about them, I hope this can help somehow.