Girl Game:The Car Key Secret is a free girl car game. It has been developed for Android devices. You can play it in your free time, and you don't need to spend any money. You can try it out for free.

The gameplay is based on solving puzzles. You need to find out who is trying to stop Nana from achieving her goal. You need to collect evidence and get the car keys to prove that Nana is the victim of a conspiracy.

The main characters are Nana and her friend Lily. They will be the main players in the game. Nana is a girl who is good at solving mysteries. She will try to get the car keys and the girl will be with her.