As I mentioned a while back, there were secret characters that would be revealed during the game. Below are some images with more details:

Renovated Balloon Boy (concept by Emiliano, model by ShotOfRabbet)

Balloon Boy was the last character modeled for Golden Memory 2. He wasn't originally in the game, but was added later. I thought it might have been a cool addition.

Renovated Fredbear and Renovated Springbonnie (Also known as “Prototypes”)

The Prototypes were the final bosses of Golden Memory 2. I remember they played an important role in the story. Models were made by Raffler.

Minigames (everything was done by TheDanieru)

The minigames were my favorite part of the game. The main purpose of the minigames was to tell the story of both the game’s past and present.