You have a magical key that has the power to give life to toys and bring them into reality.You can use the key on anything from action figures to toy wepons to fake gold dabloons. You can use the key on any space with a lock such as a cupboard or a closet.
Keep in mind that whatever you bring to life has its own personality and will. So you can just throw in an evil toy like Chucky and expect it to do your bidding just because you brought it into your world.