The game has been tested and works, but it can be a bit temperamental at times. If the game does not work, it means you pushed it too far in. Make sure the little circle (see picture with red circle) is visible, and it should work just fine.
PLEASE NOTE: Game Boy Advance SP NOT INCLUDED. Picture was added at the end with the system to show that the game works.
Please reach out with any questions or offers. Will be shipped with care!